1-B

1. Count the number of things in each picture. Write the number and word name.

   Picture	Answer
   	Numeral: Word Name:
   	Numeral: Word Name:
   	Numeral: Word Name:
   	Numeral: Word Name:

1-C

2. Fill in the blanks to make each sentence true. Draw a picture for B and D.
   1. 58 means           tens and           ones.
   2. 18 means           tens and           ones.
   3. 471 means           hundreds,           tens and           ones.
   4. 127 means           hundreds,           tens and           ones.
3. Write the place value names (ones, tens, hundreds) for each underlined digit.
   1. 564          
   2. 239          
   3. 986          
   4. 534          
4. Name the digit for the place value named from the number 5782.
   1. Ten          
   2. Hundreds          
5. Write the word names for the numbers.
   1. 17
   2. 342
   3. 625
6. Write numerals for these word names.
   1. seventy-five
   2. nineteen
   3. seven hundred fifty
   4. nine hundred five
   5. eight hundred seventy-three

1-D

7. Place a box around the larger number.
   1. 452, 245
   2. 678, 687
8. H. Arrange these numbers in order from smallest to largest.
   1. 86, 668, 886, 686, 868, 66, 866
   2. 23, 323, 223, 33, 332, 322, 232
9. Write <, > or = in each blank as needed.
   1. 23           34
   2. 118           118
   3. 667           576
   4. 405           450

1-E

10. Round each number to the nearest ten.
    1. 52
    2. 123
    3. 178
    4. 89
11. Word problems. For each problem, round the numbers to the nearest 10.
    1. The polar bear can weigh 1 002 kilograms, a koala bear can weigh 14 kilograms, a panda bear can weigh 113 kilograms, a Kodiak bear can weigh 679 kilograms and a black bear can weigh 272 kilograms. Round each number to the nearest 10.

       Bear	Number	Rounded Number
       Polar Bear
       Koala Bear
       Panda Bear
       Kodiak Bear
       Black Bear

12. How much money do you have?
    1.           cents
    2.           dollars

2-A

13. Check out your addition facts.
    1. [latex]\begin{align}0\\+8\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}2\\+3\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}8\\+2\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}1\\+4\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}5\\+0\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}9\\+5\\ \hline \\ \end{align}[/latex]
    7. [latex]\begin{align}6\\+7\\ \hline \\ \end{align}[/latex]
    8. [latex]\begin{align}3\\+6\\ \hline \\ \end{align}[/latex]
14. Add across or horizontally.
    1. 7 + 4 =
    2. 3 + 0 =
    3. 2 + 9 =
    4. 9 + 8 =
    5. 6 + 2 =
    6. 5 + 6 =
    7. 8 + 9 =
    8. 4 + 2 =
15. Find the sums.
    1. [latex]\begin{align}4\\5\\+3\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}2\\7\\+8\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}4\\2\\+8\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}4\\6\\+7\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}3\\2\\+3\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}6\\1\\+5\\ \hline \\ \end{align}[/latex]
16. Find the sums.
    1. [latex]\begin{align}5\\2\\3\\+4\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}2\\3\\4\\+7\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}3\\0\\1\\+2\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}2\\3\\1\\+2\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}5\\1\\3\\+2\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}4\\3\\2\\+6\\ \hline \\ \end{align}[/latex]
17. Find the perimeter of the shape. Be sure to put the unit of measure in your answer. Write the name of the shape below the picture.
    1. 
    2. 
    3. 
18. Find the sums.
    1. [latex]\begin{align}46\\+33\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}35\\+93\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}82\\+56\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}91\\+17\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}740\\+859\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}638\\+610\\ \hline \\ \end{align}[/latex]
19. Word problems.
    1. Seven cars were in the first row. Four cars were in the second row. How many cars are there in the first two rows?
    2. One bicycle stored ordered 56 bikes. Another store ordered 72 bikes. How many bikes did both stores order?
    3. A mail carrier walked 51 kilometres in a week. The next week she walked 48 kilometres the next week. How far did she walk in two weeks?

3-A

20. Check out your subtraction facts.
    1. [latex]\begin{align}9\\-5\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}6\\-3\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}17\\-8\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}14\\-7\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}14\\-9\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}11\\-2\\ \hline \\ \end{align}[/latex]
    7. [latex]\begin{align}12\\-5\\ \hline \\ \end{align}[/latex]
    8. [latex]\begin{align}9\\-3\\ \hline \\ \end{align}[/latex]
21. Subtract across or horizontally
    1. 4 − 1 =
    2. 8 − 2 =
    3. 17 − 8 =
    4. 11 − 6 =
    5. 6 − 4 =
    6. 11 − 3 =

3-B

22. Find the differences.
    1. [latex]\begin{align}76\\-25\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}84\\-43\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}95\\-74\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}69\\-16\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}852\\-321\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}789\\-650\\ \hline \\ \end{align}[/latex]
23. Word problems. Solve each work problem.
    1. There were 18 roses in a bouquet. Milton gave 9 roses away. How many roses were left?
    2. A city has 89 mail carriers. One day only 54 were at work. How many were not at work?
    3. Mariko and Stefan went 5-pin bowling. Mariko scored 274 points while Stefan scored 152. How many more points did Mariko score?

4-A

24. Estimate the following answers. Be sure to round to the nearest 10 before adding.
    1. [latex]\begin{align}81\\+74\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}53\\+39\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}43\\+68\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}733\\+719\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}907\\+448\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}623\\+914\\ \hline \\ \end{align}[/latex]
25. Estimate the following answers. Be sure to round to the nearest 10 before subtracting.
    1. [latex]\begin{align}82\\-59\\ \hline \\ \end{align}[/latex]
    2. [latex]\begin{align}67\\-38\\ \hline \\ \end{align}[/latex]
    3. [latex]\begin{align}61\\-17\\ \hline \\ \end{align}[/latex]
    4. [latex]\begin{align}968\\-426\\ \hline \\ \end{align}[/latex]
    5. [latex]\begin{align}577\\-171\\ \hline \\ \end{align}[/latex]
    6. [latex]\begin{align}742\\-533\\ \hline \\ \end{align}[/latex]
26. Word problems. Estimate the following answers. Be sure to round to the nearest 10 before adding or subtracting.
    1. Mr. Han worked in his store for 33 years. Before owning a store, he had worked in a bank for 24 years. How many years has Mr. Han worked?
    2. The longest span of the Lions Gate Bridge in Vancouver is 473 metres. The longest span of the Confederation Bridge in Prince Edward Island is 247 metres. What is the difference?

4-B

27. Write the following times in standard format.
    1. 3 h, 22 min, 51 s
    2. 8 h, 38 min, 9 s
    3. 10 h, 18 min, 23 s
    4. 7 h, 43 min, 34 s
28. Write the following times using a.m. or p.m.
    1. The movie begins at 8:30 in the evening.
    2. The coffee shop opens at 5:15 in the morning.
    3. The shopping mall closes at 10:00 at night.
29. Round the following times to the nearest hour.
    1. The running time for the movie was 2 hours and 25 minutes.
    2. It took 5 hours and 53 minutes to go the hockey and return home after the game.
30. The following things give the idea of a shape. Write the name of the shape in each blank.
    1. A tree is a          .
    2. A swimming pool is a          .
    3. A quarter is a          .
31. What shape are the following things? Write triangle, square, rectangle or circle.
    1. 
    2. 

Answers to Book 1 Review

1. 1. 4, four
   2. 3, three
   3. 8, eight
   4. 6, six
   1. 5 tens, 8 ones
   2. 1 ten, 8 ones
   3. 4 hundreds, 7 tens, 1 one
   4. 1 hundred, 2 tens, 7 ones
   1. tens
   2. ones
   3. tens
   4. hundreds
   1. 8
   2. 7
   1. seventeen
   2. three hundred forty-two
   3. six hundred twenty-five
   1. 75
   2. 19
   3. 750
   4. 905
   5. 873
   1. 452
   2. 687
   1. 66, 86, 668, 686, 866, 868, 886
   2. 23, 33, 223, 232, 322, 323, 332
   1. <
   2. =
   3. >
   4. <
   1. 50
   2. 120
   3. 180
   4. 90

   1. Bear	Number	Rounded Number
      Polar Bear	1002	1000
      Koala Bear	14	10
      Panda Bear	113	110
      Kodiak Bear	679	680
      Black Bear	272	270

   1. 40 cents
   2. 12 dollars
   1. 8
   2. 5
   3. 10
   4. 5
   5. 5
   6. 14
   7. 13
   8. 9
   1. 11
   2. 3
   3. 11
   4. 17
   5. 8
   6. 11
   7. 17
   8. 6
   1. 12
   2. 17
   3. 14
   4. 17
   5. 8
   6. 12
   1. 14
   2. 16
   3. 6
   4. 8
   5. 11
   6. 15
   1. 10 metres, rectangle
   2. 12 metres, triangle
   3. 8 metres, square
   1. 79
   2. 128
   3. 138
   4. 108
   5. 1599
   6. 1248
   1. 11 cars
   2. 128 bikes
   3. 99 kilometres
   1. 4
   2. 3
   3. 9
   4. 7
   5. 5
   6. 9
   7. 7
   8. 6
   1. 3
   2. 6
   3. 9
   4. 5
   5. 2
   6. 8
   1. 51
   2. 41
   3. 21
   4. 53
   5. 531
   6. 139
   1. 9 roses
   2. 35 mail carriers
   3. 122 points
   1. 80 + 70 = 150
   2. 50 + 40 = 90
   3. 40 + 70 = 110
   4. 730 + 720 = 1450
   5. 910 + 450 = 1360
   6. 620 + 910 = 1530
   1. 80 − 60 = 20
   2. 70 − 40 = 30
   3. 60 − 20 = 40
   4. 970 − 430 = 540
   5. 580 − 170 = 410
   6. 740 − 530 = 210
   1. 50 years
   2. 220 metres
   1. 3:22:51
   2. 8:38:09
   3. 10:18:23
   4. 7:43:34
   1. 8:30 p.m.
   2. 5:15 a.m.
   3. 10:00 p.m.
   1. 2 hours
   2. 6 hours
   1. triangle
   2. rectangle
   3. circle
   1. rectangle
   2. square

Exercise 1

Count the number of shapes in each picture. Then write the numeral and the word name. Check your work using the answer key at the end of the exercise.

Picture	Answer
	Numeral: 3 Word name: Three
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:
	Numeral: Word name:

Answers to Exercise 1

1. 2, two
2. 6, six
3. 8, eight
4. 9, nine
5. 1, one
6. 5, five
7. 7, seven
8. 4, four

Topic B Self-Test

1. Count the number of things in each picture, then write the numeral and the word name.
   1. 
   2. 
   3. 
   4. 
2. Write the numerals from one to ten.

1. 1. 0, zero
   2. 6, six
   3. 8, eight
   4. 9, nine

2. 1. 1

      2

      3

      4

      5

      6

      7

      8

      9

      10

3 means 3 ones.

Exercise 1

Fill in the blanks to make each sentence true. Draw a picture for questions c, f, h, and j like the examples. Check your work using the answer key at the end of the exercise. Ask your instructor to check your sketches. Example 49 means    4    tens and    9    ones.

1. 37 means           tens and           ones.
2. 65 means           tens and           ones.
3. 56 means           tens and           ones.
4. 87 means           tens and           ones
5. 33 means           tens and           ones.
6. 60 means           tens and           ones.

Answers to Exercise 1

1. 3 tens, 7 ones
2. 6 tens, 5 ones
3. 5 tens, 6 ones
4. 8 tens, 7 ones
5. 3 tens, 3 ones
6. 6 tens, 0 ones

Need more practice?

Ask your instructor for some fake money. Using the one, ten, and hundred dollar bills, practice trading ten of one type of bill for one of the next value.

Reading and Writing Numerals

• 328 is a numeral
• 46 is a numeral
• 3 is a numeral

• Digits are the “letters” of math.
• Numerals are the “words” of math.
• Numbers are the “meaning” of math.

200      two hundred

 Topic C Self-Test

1. Write the place value for the underlined digit. (6 marks)
   1. 765
   2. 903
   3. 479
   4. 185
   5. 732
   6. 397
2. Write the word names for these numerals. (6 marks)
   1. 79
   2. 492
   3. 378
   4. 820
   5. 405
   6. 583
3. Write the numerals for these word names. (5 marks)
   1. five hundred forty-seven
   2. three hundred eighty
   3. two hundred seventy-five
   4. four hundred sixteen
   5. nine hundred twenty-three

1. 1. tens
   2. tens
   3. hundreds
   4. ones
   5. ones
   6. hundreds
2. 1. seventy-nine
   2. four hundred ninety-two
   3. three hundred seventy-eight
   4. eight hundred twenty
   5. four hundred five
   6. five hundred eighty-three
3. 1. 547
   2. 380
   3. 275
   4. 416
   5. 923

• 63 has a 6 in the tens place
• 59 has a 5 in the tens place.
• 63 is larger than 59.

• Both have 4’s.

• 496 has a 9 in the tens place
• 476 has a 7 in the tens place.
• 496 is larger than 476.

• 6, 1
• 66, 61, 16, and
• 616, 666

Greater Than, Less Than, Equals

• 5 < 12 means 5 is less than 12
• 6 > 3 means 6 is greater than 3

Remember

The hungry mouth goes to the biggest number.

Topic D Self-Test

1. Box the larger number of each pair. (6 marks)
   1. 978, 789
   2. 566, 556
   3. 120, 142
   4. 701, 710
   5. 430, 403
   6. 879, 987
2. Arrange these numerals in order from smallest to largest. (2 marks)
   1. 75, 754, 475, 47, 747, 574, 775
   2. 18, 237, 429, 824, 37, 994, 112
3. Write >, <. or = in each blank to make a true statement. (4 marks)
   1. 678           768
   2. 102           100
   3. 463           846
   4. 101           101

1. 1. 978
   2. 566
   3. 142
   4. 710
   5. 430
   6. 987
2. 1. 47, 75, 475, 574, 747, 754, 775
   2. 18, 37, 112, 237, 429, 824, 994
3. 1. <
   2. >
   3. <
   4. =

• We may not know the exact number.
• The exact number may not be important for what we are doing.
• We may need a quick way to figure something out.

Rounding to the Nearest Ten

1. Underline the tens digit. 83
2. Look at the digit following in the ones place. 83
3. If the digit in the ones place is less than 5, write a 0 in the ones place. Leave the tens digit as it is.
   • 42, rounds to 40 (42 is nearer to 40 than to 50)
   • 14, rounds to 10
   • 83, rounds to 80
4. If the digit in the ones place is 5 or more, write a 0 in the ones place. Add one more ten to the tens place.
   • 36, rounds to 40 (36 is nearer to 40 than to 30)
   • 25, rounds to 30
   • 98, rounds to 100 (one more ten than nine tens is ten tens)

Topic E Self-Test

1. Round your answer to the nearest ten. (8 marks)
   1. 47 ≈          
   2. 123 ≈          
   3. 4 ≈          
   4. 945 ≈          
   5. 329 ≈          
   6. 481 ≈          
   7. 865 ≈          
   8. 916 ≈          
2. Round each number to the nearest ten. (4 marks) Mary scored 78, 91, 79, 67 and 102 on her arithmetic test. Round her scores to the nearest ten.

   Score	Rounded Score
   78
   91
   79
   67
   102

1. 1. 50
   2. 120
   3. 0
   4. 950
   5. 330
   6. 480
   7. 870
   8. 920
2. 1. 80, 90, 80, 70, 100

Exercise 1

Count how much money you have. Check your work using the answer key at the end of the exercise. Example: How many nickels?      3      How much money do you have?    15 cents    

1. How many toonies do you have? How much money do you have?           dollars.
2. How many dimes do you have? How much money do you have?           cents.
3. How many nickels do you have? How much money do you have?           cents.
4. How many dimes do you have? How much money do you have?           cents.
5. How many nickels do you have? How much money do you have?           cents.
6. How many toonies do you have? How much money do you have?           dollars.
7. How many dimes do you have? How much money do you have?           cents.

Answers to Exercise 1

1. 4 toonies, 8 dollars
2. 7 dimes, 70 cents
3. 9 nickels, 45 cents
4. 4 dimes, 40 cents
5. 10 nickels, 50 cents
6. 13 toonies, 26 dollars
7. 9 dimes, 90 cents

Topic F Self-Test

1. Write the first 10 odd numbers starting with 1. (5 marks)
2. Write the first 10 even numbers starting at 2. (5 marks)
3. How much money do you have? (6 marks, 2 marks each)
   1. How much money do you have?           cents.
   2. How much money do you have?           dollars.
   3. How much money do you have?           cents.

1. 1. 1, 3, 5, 7, 9, 11, 13, 15 17, 19
2. 1. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
3. 1. 75 cents
   2. 38 dollars
   3. 80 cents

Answers to Unit 1 Review

1. 1. 9, nine
   2. 7, seven
   3. 6, six
   4. 8, eight
   5. 5, five
2. 1. 4 tens, 6 ones
   2. 2 tens, 5 ones
   3. 63, 6 tens, 3 ones
   4. 1 hundred, 3 tens, 8 ones
   5. 2 hundreds, 3 tens, 1 one
   6. 325, 3 hundreds, 2 tens, 5 ones
3. 1. hundreds
   2. tens
   3. ones
   4. hundreds
   5. tens
   6. ones
4. 1. 164
   2. 892
   3. 250
   4. 371
   5. 485
   6. 743
5. 1. seventy-three
   2. fourteen
   3. five
   4. thirty-nine
   5. fifty-two
   6. four hundred ninety-six
   7. eight hundred three
   8. six hundred forty
6. 1. 47
   2. 19
   3. 65
   4. 38
   5. 24
   6. 535
   7. 360
   8. 204
7. 1. 23, 32, 258, 282, 345, 534
   2. 27, 155, 208, 335, 452, 635
8. 1. <
   2. >
   3. <
   4. =
9. 1. 40
   2. 340
   3. 70
   4. 30
10. 1. 70 cents
    2. 26 dollars
    3. 90 cents

11. 1. Melon	Number	Rounded Number
       Watermelons	114	110
       Honeydews	287	290
       Cantaloupes	345	350

    2. Kilometres	Number	Rounded Number
       Saturday	106	110
       Sunday	187	190
       Monday	285	290

Adding Across

[latex]\begin{align} 4 \\ +5 \\ \hline 9 \end{align}[/latex]

4 + 5 = 9

Word Problems

• more than
• plus
• added to
• sum
• total
• have altogether
• in all

• You have circled 2 pages and 9 pages. This is the information you will use to find the answer.
• You have underlined “in all”. These words tell you to add.

[latex]\begin{align} 2\text{ pages}\\+9\text{ pages}\\ \hline 11\text{ pages} \end{align}[/latex]

Topic A Self-Test

1. Find the sums. Be sure to check your answers. (12 marks)
   1. [latex]\begin{align}9\\+6\\ \hline\\ \end{align}[/latex]
   2. [latex]\begin{align}5\\+8\\ \hline\\ \end{align}[/latex]
   3. [latex]\begin{align}4\\+2\\ \hline\\ \end{align}[/latex]
   4. [latex]\begin{align}7\\+6\\ \hline\\ \end{align}[/latex]
   5. [latex]\begin{align}3\\+5\\ \hline\\ \end{align}[/latex]
   6. [latex]\begin{align}1\\+9\\ \hline\\ \end{align}[/latex]
   7. [latex]\begin{align}2\\+3\\ \hline\\ \end{align}[/latex]
   8. [latex]\begin{align}6\\+4\\ \hline\\ \end{align}[/latex]
   9. [latex]\begin{align}8\\+1\\ \hline\\ \end{align}[/latex]
   10. [latex]\begin{align}9\\+8\\ \hline\\ \end{align}[/latex]
   11. [latex]\begin{align}7\\+4\\ \hline\\ \end{align}[/latex]
   12. [latex]\begin{align}5\\+6\\ \hline\\ \end{align}[/latex]
2. Find the sums. Be sure to check your answers. (4 marks)
   1. 6 + 7 =
   2. 3 + 8 =
   3. 4 + 6 =
   4. 8 + 5 =
3. Solve each of the following word problems. Be sure to include the unit of measure in your answer. Be sure to circle the information and underline what's being asked.(6 marks, 2 marks each)
   1. Paco worked 5 hours on Monday and 9 hours on Tuesday. How many hours did Paco work in total?
   2. In the park, Ming-Mai counted 6 robins in the morning. In the afternoon, she counted 8 more robins. How many robins in all did Ming-Mai count?
   3. Omari bought 3 bananas on Monday. He bought 5 bananas on Tuesday. How many bananas did he buy altogether?

1. 1. 15
   2. 13
   3. 6
   4. 13
   5. 8
   6. 10
   7. 5
   8. 10
   9. 9
   10. 17
   11. 11
   12. 11
   1. 13
   2. 11
   3. 10
   4. 13
   1. 14 hours
   2. 14 robins
   3. 8 bananas

[latex]\begin{align} 6\\ 1\\ +3\\ \hline \\ \end{align}[/latex]

1. Add the first two numbers together. [latex]\begin{align} 6 \\ +1\\ \hline 7 \end{align}[/latex]
2. Add that sum to the next number. [latex]\begin{align} 7\\ +3 \\ \hline 10 \end{align}[/latex]

[latex]\begin{align} 6 \\ 1\\ +3\\ \hline 10 \end{align}[/latex]

[latex]\begin{align} 4\\ 5\\ +7\\ \hline \\ \end{align}[/latex]

1. Add the first two numbers together. [latex]\begin{align} 4\\ +5\\ \hline 9 \end{align}[/latex]
2. Add that sum to the third number. [latex]\begin{align} 9\\ +7\\ \hline 16 \end{align}[/latex]

[latex]\begin{align} 4\\ 5\\ +7\\ \hline 16 \end{align}[/latex]

Perimeter

Example: Rectangle

• Perimeter = 3 + 2 + 3 + 2
• Perimeter = 10 meters

Topic B Self-Test

1. Find the sums. Be sure to check your answers. (12 marks)
   1. [latex]\begin{align} 4\\ 6\\ +2\\ \hline \end{align}[/latex]
   2. [latex]\begin{align} 3\\ 6\\ +9\\ \hline \end{align}[/latex]
   3. [latex]\begin{align} 7\\ 2\\ +8\\ \hline \end{align}[/latex]
   4. [latex]\begin{align} 2\\ 1\\ +4\\ \hline \end{align}[/latex]
   5. [latex]\begin{align} 3\\ 5\\ +8\\ \hline \end{align}[/latex]
   6. [latex]\begin{align} 4\\ 6\\ +7\\ \hline \end{align}[/latex]
   7. [latex]\begin{align} 3\\ 1\\ 5\\ +2\\ \hline \end{align}[/latex]
   8. [latex]\begin{align} 4\\ 2\\ 3\\ +7\\ \hline \end{align}[/latex]
   9. [latex]\begin{align} 5\\ 3\\ 1\\ +8\\ \hline \end{align}[/latex]
   10. [latex]\begin{align} 3\\ 5\\ 1\\ +3\\ \hline \end{align}[/latex]
   11. [latex]\begin{align} 1\\ 5\\ 4\\ +6\\ \hline \end{align}[/latex]
   12. [latex]\begin{align} 2\\ 1\\ 6\\ +5\\ \hline \end{align}[/latex]
2. Solve each of the following word problems. Be sure to include the unit of measure in your answer. Be sure to circle the information and underline what's being asked.(6 marks, 2 marks each)
   1. It took the cleanup crew 4 hours on Monday, 3 hours on Tuesday and 9 hours on Wednesday to clean the factory after each day’s work. How many hours in total did it take to clean the factory?
   2. Nella wants to put a fence around her garden. The garden measures 5 metres, 3 metres and 1 metre. How much fence does she need?
   3. Find the perimeter of the garden.

1. 1. 12
   2. 18
   3. 17
   4. 7
   5. 16
   6. 17
   7. 11
   8. 16
   9. 17
   10. 12
   11. 16
   12. 14
2. 1. 16 hours
   2. 9 metres
   3. 12 metres

[latex]\begin{align} 23\\ +56\\ \hline \\ \end{align}[/latex]

1. Add the ones to the ones. 3 ones + 6 ones = 9 ones. Write the answer in line with the ones in the equation. [latex]\begin{align} 23\\ +56\\ \hline 9 \end{align}[/latex]
2. Add the tens. 2 tens + 5 tens = 7 tens [latex]\begin{align} 23\\ +56\\ \hline 79\end{align}[/latex]

[latex]\begin{align} 372\\ +415\\ \hline \\ \end{align}[/latex]

1. Add the ones. 2 ones + 5 ones = 7 ones [latex]\begin{align} 372\\ +415\\ \hline 7\end{align}[/latex]
2. Add the tens. 7 tens + 1 ten = 8 tens [latex]\begin{align} 372\\ +415\\ \hline 87\end{align}[/latex]
3. Add the hundreds. 3 hundreds + 4 hundreds = 7 hundreds [latex]\begin{align} 372\\ +415\\ \hline 787\end{align}[/latex]

Topic C Self-Test

1. Find the sums. Be sure to check your answers. (12 marks)
   1. [latex]\begin{align} 46\\ +23\\ \hline \\ \end{align}[/latex]
   2. [latex]\begin{align} 32\\ +13\\ \hline \\ \end{align}[/latex]
   3. [latex]\begin{align} 72\\ +25\\ \hline \\ \end{align}[/latex]
   4. [latex]\begin{align} 56\\ +12\\ \hline \\ \end{align}[/latex]
   5. [latex]\begin{align} 65\\ +34\\ \hline \\ \end{align}[/latex]
   6. [latex]\begin{align} 25\\ +51\\ \hline \\ \end{align}[/latex]
   7. [latex]\begin{align} 324\\ +263\\ \hline \\ \end{align}[/latex]
   8. [latex]\begin{align} 183\\ +514\\ \hline \\ \end{align}[/latex]
   9. [latex]\begin{align} 753\\ +145\\ \hline \\ \end{align}[/latex]
   10. [latex]\begin{align} 618\\ +120\\ \hline \\ \end{align}[/latex]
   11. [latex]\begin{align} 224\\ +465\\ \hline \\ \end{align}[/latex]
   12. [latex]\begin{align} 563\\ +216\\ \hline \\ \end{align}[/latex]
2. Solve each of the following word problems. Be sure to include the unit of measure in your answer. Be sure to circle the information and underline what's being asked.(6 marks, 2 marks each)
   1. Mahala’s dad worked 45 hours one week and 52 hours the next week. How many hours did he work during those two weeks?
   2. A trucker drove 526 kilometers on the first trip and 341 kilometers on the next. How many kilometers did the trucker drive altogether?
   3. Find the perimeter of the garden.

1. 1. 69
   2. 45
   3. 97
   4. 68
   5. 99
   6. 76
   7. 587
   8. 697
   9. 898
   10. 738
   11. 689
   12. 779
2. 1. 97 hours
   2. 867 kilometres
   3. 46 metres

Answers to Unit 2 Review

1. 1. 11
   2. 10
   3. 7
   4. 16
   5. 17
   6. 14
   7. 13
   8. 5
   9. 12
   10. 6
   11. 18
   12. 9
   13. 3
   14. 4
   15. 15
   16. 8
2. 1. 15
   2. 3
   3. 18
   4. 7
   5. 4
   6. 12
   7. 17
   8. 9
   9. 14
   10. 6
3. 1. 12
   2. 8
   3. 16
   4. 12
   5. 9
   6. 17
   7. 13
   8. 13
   9. 17
4. 1. 56
   2. 99
   3. 76
   4. 113
   5. 96
   6. 88
   7. 85
   8. 76
   9. 95
   10. 67
   11. 107
   12. 78
5. 1. 865
   2. 867
   3. 779
   4. 597
   5. 598
   6. 447
   7. 778
   8. 966
   9. 849
   10. 869
   11. 586
   12. 956
6. 1. 8 metres, rectangle
   2. 20 metres, square
   3. 676 metres
   4. 98 kilograms