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3A · Chapter 3 · Practice

Chapter review

Attempt independently, then review the full reasoning in the answer key.

Attempt independently, then review the full reasoning in the answer key. No name, account, or answer is transmitted to any server.

Assessment · 28 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

    Subtract 1,792 − 558; show any place-value exchange.

  2. A2

    Calculate 4,005 − 400; explain how you cross the zero places.

  3. A3

    Estimate 6,274 + 1,222 by rounding BOTH numbers to the nearest 100.

  4. A4

    A museum had 3,364 tickets and sold 395. How many tickets remain?

  5. A5

    Estimate 6,936 + 1,604 by rounding BOTH numbers to the nearest 100.

  6. A6

    Calculate 2,020 − 546; explain how you cross the zero places.

  7. A7

    Why does 679+154 require exchanges in both ones and tens?

  8. A8

    Estimate 3,066 − 534 by rounding BOTH numbers to the nearest 100.

  9. A9

    Subtract 2,112 − 698; show any place-value exchange.

  10. A10

    A delivery service starts with 2,640 parcels and delivers 987. Estimate to hundreds, then compute exactly.

  11. A11

    Subtract 1,952 − 628; show any place-value exchange.

  12. A12

    Calculate 1,000 − 473; explain how you cross the zero places.

  13. A13

    Add 568 and 847. Explain one exchange of ten units.

  14. A14

    Find 3,000−476. Describe the exchange chain, not only the result.

  15. A15

    Subtract 1,642 − 498; show any place-value exchange.

  16. A16

    Estimate 2,735 − 343 by rounding BOTH numbers to the nearest 10.

  17. A17

    Calculate 3,040 − 327; explain how you cross the zero places.

  18. A18

    An exhibit recorded 3,587 visitors in the morning and 466 more in the afternoon. How many altogether?

  19. A19

    Estimate 2,073 − 1,661 by rounding BOTH numbers to the nearest 10.

  20. A20

    A corrected difference should be 403. The smaller number is 1,978. Find the larger number.

  21. A21

    Estimate 6,605 + 1,413 by rounding BOTH numbers to the nearest 10.

  22. A22

    Estimate 5,943 + 1,031 by rounding BOTH numbers to the nearest 10.

  23. A23

    Add 398 and 717. Explain one exchange of ten units.

  24. A24

    Add 908 and 1,127. Explain one exchange of ten units.

  25. A25

    Estimate 2,404 − 1,852 by rounding BOTH numbers to the nearest 100.

  26. A26

    A museum had 3,810 tickets and sold 537. How many tickets remain?

  27. A27

    Add 738 and 987. Explain one exchange of ten units.

  28. A28

    An exhibit recorded 4,033 visitors in the morning and 608 more in the afternoon. How many altogether?

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