Unit 1: Number Sense

# Unit 1 Review: Number Sense

You will now practice all the skills you learned in Unit 1. Check your work using the answer key at the end of the review.

1. Count the number of things in each picture. Write the number and word name.
Numeral:
Word Name:
Numeral:
Word Name:
Numeral:
Word Name:
Numeral:
Word Name:
Numeral:
Word Name:
2. Fill in the blanks to make each sentence true. Draw a picture for questions b and e.
1. 46 means           tens and           ones.
2. 25 means           tens and           ones. Draw your picture below.
3.            means           tens and           ones.
4. 138 =            hundreds,           tens,           ones.
5. 231 =            hundreds,           tens,           ones. Draw your picture below.
6.            hundreds           tens           ones =

3. Write the place value names (ones, tens, hundreds) for each individual digit.
1. 821
2. 294
3. 638
4. 417
5. 346
6. 573
4. Underline the digit for the place value named.
1. hundreds, 164
2. tens, 892
3. tens, 250
4. hundreds, 371
5. ones, 485
6. ones, 743
5. Write the word names for the numbers.
1. 73
2. 14
3. 5
4. 39
5. 52
6. 496
7. 803
8. 640
6. Write the numerals for these word names.
1. forty-seven
2. nineteen
3. sixty-five
4. thirty-eight
5. twenty-four
6. five hundred thirty-five
7. three hundred sixty
8. two hundred four
7. Arrange these numbers in order from smallest to largest.
1. 258, 32, 23, 282, 345, 534
2. 452, 208, 27, 335, 635, 155
8. Write <, > or = in each blank as needed.
1. 37            52
2. 4            0
3. 349            394
4. 67            67
9. Round each number to the nearest ten.
1. 37 ≈
2. 344 ≈
3. 68 ≈
4. 25 ≈
5. 51 ≈
6. 876 ≈
10. How much money do you have?
1.          cents
2.          dollars
3.          cents
11. Word problems.
1. Hussein’s fruit stand sold 114 watermelons, 287 honeydew melons and 345 cantaloupes. Round each number to the nearest ten.
Melon Number Rounded Number
Watermelons
Honeydews
Cantaloupes
2. Yi-Min drove her delivery van 106 kilometres on Saturday, 187 kilometres on Sunday and 285 kilometres on Monday. Round each number to the nearest ten.
Kilometres Number Rounded Number
Saturday
Sunday
Monday

# Answers to Unit 1 Review

1. 9, nine
2. 7, seven
3. 6, six
4. 8, eight
5. 5, five
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
1. hundreds
2. tens
3. ones
4. hundreds
5. tens
6. ones
1. 164
2. 892
3. 250
4. 371
5. 485
6. 743
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
1. 47
2. 19
3. 65
4. 38
5. 24
6. 535
7. 360
8. 204
1. 23, 32, 258, 282, 345, 534
2. 27, 155, 208, 335, 452, 635
1. <
2. >
3. <
4. =
1. 40
2. 340
3. 70
4. 30
1. 70 cents
2. 26 dollars
3. 90 cents
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

CONGRATULATIONS!!

Now you have finished Unit 1.

TEST TIME!

Once you’ve done the Practice Test,

You need to do the Unit 1 Test.