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3A · Chapter 4 · 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 · 31 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

    Each of 3 shelves holds 25 equally sized boxes. How many boxes altogether?

  2. A2

    A store has 9 packs of 18 markers, then sells 24 markers. How many remain?

  3. A3

    Sam has 32 beads. Nora has 2 times as many. How many beads does Nora have?

  4. A4

    Each of 12 shelves holds 18 equally sized boxes. How many boxes altogether?

  5. A5

    Calculate 14 × 7 by splitting 14 into tens and ones.

  6. A6

    Is 158 + 57 odd or even? Explain using pairs.

  7. A7

    30 counters are shared equally among 6 children. How many does each receive?

  8. A8

    There are 47 children; each team can hold 6. How many complete teams form, and how many children remain?

  9. A9

    65 oranges are packed into bags holding 8 each. How many FULL bags and how many oranges left?

  10. A10

    Calculate 21 × 8 by splitting 21 into tens and ones.

  11. A11

    There are 5 equal rows with 10 counters each. How many counters?

  12. A12

    Explain why 8×(5+2) is the same as 8×5+8×2.

  13. A13

    Give an array with 30 counters that has more rows than columns, and a rotated version.

  14. A14

    Sam has 6 beads. Nora has 3 times as many. How many beads does Nora have?

  15. A15

    A store has 10 packs of 7 markers, then sells 29 markers. How many remain?

  16. A16

    Each of 5 shelves holds 9 equally sized boxes. How many boxes altogether?

  17. A17

    Is 124 + 35 odd or even? Explain using pairs.

  18. A18

    There are five boxes of 9 pencils each. Four are broken. How many usable pencils?

  19. A19

    Calculate 69 × 0, and explain why.

  20. A20

    Calculate 62 × 1, and explain why.

  21. A21

    48 counters are shared equally among 4 children. How many does each receive?

  22. A22

    Calculate 82 × 6 by splitting 82 into tens and ones.

  23. A23

    There are 6 equal rows with 8 counters each. How many counters?

  24. A24

    Calculate 0 ÷ 76, and explain why.

  25. A25

    45 oranges are packed into bags holding 2 each. How many FULL bags and how many oranges left?

  26. A26

    143 oranges are packed into bags holding 9 each. How many FULL bags and how many oranges left?

  27. A27

    There are 4 equal rows with 3 counters each. How many counters?

  28. A28

    Sam has 9 beads. Nora has 4 times as many. How many beads does Nora have?

  29. A29

    Is 141 + 46 odd or even? Explain using pairs.

  30. A30

    A store has 3 packs of 10 markers, then sells 6 markers. How many remain?

  31. A31

    75 counters are shared equally among 5 children. How many does each receive?

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