Chapter practice examination

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

   There are 7 equal rows with 8 counters each. How many counters?

2. A2

   Thirty-six children must form teams of 4. After two teams leave, how many children remain?

3. A3

   Three times as many as 12 is different from 12 more than 3. Find both amounts.

4. A4

   For 6×(10+4), a child computes 60+4. Identify and correct the error.

5. A5

   A store has 9 packs of 6 markers, then sells 14 markers. How many remain?

6. A6

   An array has area 6×9. Show a decomposition using 6×(10−1).

7. A7

   Sam has 26 beads. Nora has 2 times as many. How many beads does Nora have?

8. A8

   Why does 0÷5 equal 0, but 5÷0 is undefined?

9. A9

   Two groups contain 17 and 19 counters. Can they form 9 equal groups of 4?

10. A10

    Is 119 + 35 odd or even? Explain using pairs.

11. A11

    Without multiplying, decide whether 8×7 is odd or even. Explain.

12. A12

    A child has 43 counters. How many groups of 6 can be made, with how many left over?

13. A13

    Each of 8 shelves holds 22 equally sized boxes. How many boxes altogether?

14. A14

    A teacher buys 7 packs of 6 pencils, then distributes 30. How many remain?

15. A15

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

16. A16

    A library displays 45 books in 5 equal rows. It removes one complete row. How many remain?

17. A17

    Calculate 32 × 2 by splitting 32 into tens and ones.

18. A18

    Calculate 27 × 1, and explain why.

19. A19

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

20. A20

    Five vans carry 7 students each and three more students travel by car. Total students?

21. A21

    A gardener has 58 plants and places 8 in each tray. How many trays are needed to contain them all?