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3A · Chapter 5 · 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 · 32 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

    Calculate 45 × 2 and show the exchanges.

  2. A2

    Calculate 127 × 2 and show the exchanges.

  3. A3

    Calculate 55 × 3 and show the exchanges.

  4. A4

    Find 7 × 20; explain the units of the product.

  5. A5

    Calculate 347×2 and identify every exchanged place-value group.

  6. A6

    Calculate 35 × 2 and show the exchanges.

  7. A7

    Calculate 82 × 3 and show the exchanges.

  8. A8

    Calculate 321 × 3 using partial products.

  9. A9

    Calculate 15 × 2 and show the exchanges.

  10. A10

    Find 8 × 500; explain the units of the product.

  11. A11

    Calculate 75 × 3 and show the exchanges.

  12. A12

    Calculate 85 × 3 and show the exchanges.

  13. A13

    Calculate 52 × 3 and show the exchanges.

  14. A14

    Calculate 285 × 3 and show the exchanges.

  15. A15

    Calculate 227 × 2 and show the exchanges.

  16. A16

    Calculate 62 × 3 and show the exchanges.

  17. A17

    Calculate 185 × 3 and show the exchanges.

  18. A18

    Calculate 475 × 3 and show the exchanges.

  19. A19

    Calculate 223 × 2 using partial products.

  20. A20

    A store packs 4 trays with 186 apples each, and 17 apples remain unpacked. How many apples were there?

  21. A21

    Find 2 × 80; explain the units of the product.

  22. A22

    Calculate 317 × 2 and show the exchanges.

  23. A23

    Find 6 × 800; explain the units of the product.

  24. A24

    Calculate 327 × 2 and show the exchanges.

  25. A25

    Calculate 331 × 2 using partial products.

  26. A26

    A student says 86×3=2418, joining the products 24 and 18. Correct using partial products.

  27. A27

    Explain why 9×200 is 1,800 rather than 18.

  28. A28

    Calculate 375 × 3 and show the exchanges.

  29. A29

    Calculate 65 × 3 and show the exchanges.

  30. A30

    Calculate 25 × 2 and show the exchanges.

  31. A31

    Calculate 72 × 3 and show the exchanges.

  32. A32

    Calculate 331 × 3 using partial products.

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