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. Write the place value names (ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions) for each bolded digit.
    1. 4392
    2. 765
    3. 18293
    4. 56428
    5. 3641758
    6. 426153
    7. 8429576
    8. 4258
  2. Using the number 349285106, write the digit that is in each of the following place values.
    1. millions
    2. ones
    3. ten thousands
    4. thousands
    5. hundreds
    6. hundreds thousands
    7. tens
  3. Underline the digit for the place value named.
    1. hundreds,    5321
    2. tens,    8703
    3. ten thousands,    34891
    4. hundred thousands,    891402
    5. thousands,    72491
    6. millions,    4201856
  4. Write the word names for the numbers.
    1. 818
    2. 1678
    3. 29764
    4. 1984152
    5. 42803
    6. 226917
  5. Write the numerals for these word names.
    1. twenty-five thousand one hundred thirty-two
    2. one thousand two hundred seven
    3. two hundred fifteen thousand twenty-four
    4. one million six hundred ninety-five thousand four hundred twenty
    5. seven hundred twenty-six
    6. nine thousand four
  6. Write each number in expanded form.
    1. 184
    2. 3908
    3. 61281
    4. 1539587
    5. 366524
  7. Write each number from expanded form.
    1. 50000  +  6000  + 600  +  90  + 8
    2. 200000  +  70000  +  8000  +  200  +  60  + 1
    3. 3000  +  800  +  80  + 5
    4. 1000000 + 400000 + 70000 + 6000 + 100 + 50 + 3
    5. 700  +  1
  8. Arrange these numbers in order from smallest to largest.
    1. 18; 34937; 727; 1487; 147832
    2. 769; 6790; 697; 76976; 76796
  9. Write <, >, or = in each blank as needed.
    1. 9698          6899
    2. 7542         7452
    3. 34682         39421
    4. 124693         124693
    5. 738423         783423
    6. 45832         54123
  10. Round each number to the nearest hundred.
    1. 774
    2. 2581
    3. 21204
    4. 692
    5. 572098
    6. 7652931
  11. Round each number to the nearest thousand.
    1. 948
    2. 75767
    3. 288869
    4. 479
    5. 3976
    6. 5012
  12. Round each number to the nearest ten thousand.
    1. 4028
    2. 226917
    3. 126804
    4. 9794487
    5. 87805
    6. 5912
  13. Round each number to the nearest hundred thousand.
    1. 687029
    2. 1326876
    3. 523715
    4. 4766883
    5. 8182390
    6. 792013
  14. Round each number to the nearest million.
    1. 1009627
    2. 28101052
    3. 894063
    4. 9778656
    5. 80379591
    6. 3102975
  15. Word Problems.
    1. The three heaviest sharks are the whale shark weighing 30500 kilograms. The basking shark weighing 9258 kilograms. The great white shark weighing 3507 kilograms. Round each number to the nearest thousand.
      Shark Number Rounded Number
      Whale shark
      Basking shark
      Great White Shark
    2. Three of the largest islands in the world are New Guinea covering 785753 square kilometers, Baffin Island covering 503944 square kilometers and Honshu Island covering 227413 square kilometers. Round each number to the nearest ten thousand.
      Island Number Rounded Number
      New Guinea
      Baffin Island
      Honshu Island

Answers to Unit 1 Review – Number Sense

    1.  tens
    2. ones
    3. thousands
    4. hundreds
    5. hundred thousands
    6. ten thousands
    7. millions
    8. thousands
    1. 2
    2. 6
    3. 8
    4. 5
    5. 1
    6. 2
    7. 0
    1. 5321
    2. 8703
    3. 34891
    4. 891402
    5. 72491
    6. 4201856
    1. eight hundred eighteen
    2. one thousand six hundred seventy-eight
    3. twenty-nine thousand seven hundred sixty-four
    4. one million nine hundred eighty-four thousand one hundred fifty-two
    5. forty-two thousand eight hundred three
    6. two hundred twenty-six thousand nine hundred seventeen
    1. 25132
    2. 1207
    3. 215024
    4. 1695420
    5. 726
    6. 9004
    1. 100 + 80 + 4
    2. 3000 + 900 + 8
    3. 60000 + 1000 + 200 + 80 + 1
    4. 1000000 + 500000 + 30000 + 9000 + 500 + 80 + 7
    5. 300 000 + 60 000 + 6 000 + 500 + 20 + 4
    1. 56698
    2. 278261
    3. 3885
    4. 1476153
    5. 701
    1. 18,  727,  1487,  34937,  147832
    2. 697,  769,  6790,  76796,  76976
    1. >
    2. >
    3. <
    4. =
    5. <
    6. <
    1. 800
    2. 2600
    3. 21200
    4. 700
    5. 572100
    6. 7652900
    1. 1000
    2. 76000
    3. 289000
    4. 0
    5. 4000
    6. 5000
    1. 0
    2. 230000
    3. 130000
    4. 9790000
    5. 90000
    6. 10000
    1. 700000
    2. 1300000
    3. 500000
    4. 4800000
    5. 8200000
    6. 800000
    1. 1000000
    2. 28000000
    3. 1000000
    4. 10000000
    5. 80000000
    6. 3000000
    1. Shark Number Rounded Number
      Whale shark 30500 31000
      Basking shark 9258 9000
      Great White Shark 3507 4000
    2. Kilometers Number Rounded Number
      New Guinea 785753 790000
      Baffin Island 503944 500000
      Honshu Island 227413 230000

CONGRATULATIONS!!

Now you have finished Unit 1.

 

TEST TIME!

Ask your instructor for the Practice Test for this unit.

Once you’ve done the practice test, you need to do the unit 1 test.

Again, ask your instructor for this.

Good luck!

License

Icon for the Creative Commons Attribution 4.0 International License

Adult Literacy Fundamental Mathematics: Book 2 – 2nd Edition by Wendy Tagami and Liz Girard is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Share This Book