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3A · Chapter 5 · Practice

Practice B

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 · 12 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 15 × 2 and show the exchanges.

  2. A2

    Calculate 25 × 2 and show the exchanges.

  3. A3

    Calculate 35 × 2 and show the exchanges.

  4. A4

    Calculate 55 × 3 and show the exchanges.

  5. A5

    Calculate 65 × 3 and show the exchanges.

  6. A6

    Calculate 75 × 3 and show the exchanges.

  7. A7

    Calculate 216 × 2 and show the exchanges.

  8. A8

    Calculate 316 × 2 and show the exchanges.

  9. A9

    Calculate 126 × 2 and show the exchanges.

  10. A10

    Calculate 157 × 3 and show the exchanges.

  11. A11

    Calculate 257 × 3 and show the exchanges.

  12. A12

    Calculate 357 × 3 and show the exchanges.

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