Math 7 · Unit 4: Decimals · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Write these numbers in order of size, starting with the smallest.

   Put these in order.

   • 12
   • 23
   • 176
   • 498
   • 204
   • 45
   Check

2. 2. In each list one number is in the incorrect place. Which option names that number in each list? a 34, 59, 70, 215, 152, 251; b 67, 88, 39, 95, 101, 321; c 6, 8.2, 14.5, 67, 10.9, 100.7

   • a 215, b 67, c 10.9
   • a 70, b 39, c 10.9
   • a 215, b 39, c 14.5
   • a 215, b 39, c 10.9
   Check

3. 3. Write this list of numbers in the correct order of size, starting with the smallest: 34, 59, 70, 215, 152, 251.

   Put these in order.

   • 215
   • 251
   • 70
   • 59
   • 34
   • 152
   Check

4. 4. Write this list of numbers in the correct order of size, starting with the smallest: 67, 88, 39, 95, 101, 321.

   Put these in order.

   • 101
   • 95
   • 88
   • 67
   • 321
   • 39
   Check

5. 5. Write this list of numbers in the correct order of size, starting with the smallest: 6, 8.2, 14.5, 67, 10.9, 100.7.

   Put these in order.

   • 6
   • 100.7
   • 14.5
   • 10.9
   • 8.2
   • 67
   Check

6. 6. Write these measurements in the empty boxes under the ruler. One has been done for you. Measurements: 18.6 cm, 18.9 cm, 18.1 cm, 18.5 cm, 18.3 cm.

   Fill the blanks with these.

   • 18.5 cm
   • 18.4 cm
   • 18.1 cm
   • 18.2 cm
   • 18.6 cm
   • 18.9 cm
   Check

7. 7. Write these numbers in order of size, starting with the smallest. Numbers: 18.6, 18.9, 18.1, 18.5, 18.3.

   Put these in order.

   • 18.5
   • 18.6
   • 18.1
   • 18.3
   • 18.9
   Check

8. 8. Write these numbers in order of size, starting with the smallest. Numbers: 9.5, 9.3, 9.8, 9.2, 9.7.

   Put these in order.

   • 9.7
   • 9.8
   • 9.5
   • 9.3
   • 9.2
   Check

9. 9. Write these numbers in order of size, starting with the smallest. Numbers: 3.32, 3.21, 3.56, 3.42.

   Put these in order.

   • 3.21
   • 3.32
   • 3.56
   • 3.42
   Check

10. 10. Complete the workings to write these numbers in order of size, starting with the smallest. Numbers: 6.5, 6.08, 6.21, 6.1.

    Fill the blanks with these.

    • 6.50
    • 6.05
    • 6.10
    • 50
    • 21
    • 05
    • 6.21
    Check

11. 11. Write these numbers in order of size, starting with the smallest. Numbers: 4.67, 4.21, 4.5, 4.02.

    Put these in order.

    • 4.02
    • 4.21
    • 4.67
    • 4.5
    Check

12. 12. Write these numbers in order of size, starting with the smallest. Numbers: 12.9, 12.41, 12.08, 12.3.

    Put these in order.

    • 12.9
    • 12.3
    • 12.08
    • 12.41
    Check

13. 13. Which is the smaller decimal number: 3.5 or 9.1?

    • 9.1
    • They are equal.
    • 3.5
    Check

14. 14. Which is the smaller decimal number: 214.92 or 311.67?

    • 311.67
    • They are equal.
    • 214.92
    Check

15. 15. Which is the smaller decimal number: 34.56 or 43.652?

    • 43.652
    • 34.56
    • They are equal.
    Check

16. 16. Which is the smaller decimal number: 638.06 or 336.9?

    • 638.06
    • They are equal.
    • 336.9
    Check

17. 17. Which is the smaller decimal number: 0.22 or 0.3?

    • They are equal.
    • 0.3
    • 0.22
    Check

18. 18. Which is the smaller decimal number: 5.6 or 5.41?

    • 5.6
    • They are equal.
    • 5.41
    Check

19. 19. Which is the smaller decimal number: 25.67 or 25.76?

    • They are equal.
    • 25.76
    • 25.67
    Check

20. 20. Which is the smaller decimal number: 0.02 or 0.013?

    • 0.013
    • They are equal.
    • 0.02
    Check