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3A · Chapter 3 · Practice

Chapter practice examination

This original untimed public practice examination is not a secure school or placement test.

This original untimed public practice examination is not a secure school or placement test. No name, account, or answer is transmitted to any server.

Assessment · 24 questions

Problems

Try the questions first. The complete answer key is provided separately to parents.

Check your work: Finish the problems first, then ask a parent or tutor to review them with the separate answer-key copy.

  1. A1

    Estimate 5,143 + 1,731 by rounding BOTH numbers to the nearest 10.

  2. A2

    Estimate 1,273 − 661 by rounding BOTH numbers to the nearest 10.

  3. A3

    Calculate 3,040 − 587; explain how you cross the zero places.

  4. A4

    Add 2,198 and 1,317. Explain one exchange of ten units.

  5. A5

    Why must 7+8 in a ones column produce a tens exchange?

  6. A6

    Round 5,749 and 2,151 to the nearest hundred and estimate their difference.

  7. A7

    Explain how 5,000−998 can be done without complicated written borrowing.

  8. A8

    An exhibit recorded 5,587 visitors in the morning and 966 more in the afternoon. How many altogether?

  9. A9

    Calculate 4,005 − 660; explain how you cross the zero places.

  10. A10

    Estimate 1,489+2,515 by rounding to hundreds, then find the exact sum.

  11. A11

    Add 2,368 and 1,447. Explain one exchange of ten units.

  12. A12

    Estimate 1,604 − 852 by rounding BOTH numbers to the nearest 100.

  13. A13

    A museum had 5,364 tickets and sold 895. How many tickets remain?

  14. A14

    A student subtracts 2,034−586 by doing larger digit minus smaller digit in each column. Why is that invalid?

  15. A15

    A warehouse has 2,005 packages, then ships 968. It receives another 225. How many now?

  16. A16

    A school purchased 3,240 books and donated 1,475. How many remain? Check by addition.

  17. A17

    The difference of two whole numbers is 603. The smaller is 798. What is the larger?

  18. A18

    Find an addition problem with two four-digit addends whose sum ends in 00. Give one example.

  19. A19

    Subtract 2,042 − 498; show any place-value exchange.

  20. A20

    Estimate 5,474 + 222 by rounding BOTH numbers to the nearest 100.

  21. A21

    Two methods give 702−496=206 and 702−496=214. Which is reasonable and why?

  22. A22

    Compute 4,002−185 and show every necessary exchange.

  23. A23

    Subtract 2,192 − 558; show any place-value exchange.

  24. A24

    Museum A had 1,876 guests and Museum B had 945. About how many more visited A? Round both to hundreds.

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