Math 4 · Unit 15: Special numbers · Cambridge Primary Maths Stage 4

Questions

1. 1. Write these temperatures in order starting with the lowest temperature.

   Put these in order.

   • −8 °C
   • −1 °C
   • 4 °C
   • −14 °C
   • 0 °C
   • 14 °C
   Check

2. 2. Write each set of temperatures in order starting with the coldest temperature. Use the number line to help you. Remember that as you move to the right (→) numbers get larger. 0 °C, −9 °C, 3 °C, −2 °C

   Put these in order.

   • −2 °C
   • −9 °C
   • 0 °C
   • 3 °C
   Check

3. 3. Write each set of temperatures in order starting with the coldest temperature. Use the number line to help you. Remember that as you move to the right (→) numbers get larger. 3 °C, −4 °C, 7 °C, −8 °C

   Put these in order.

   • 7 °C
   • 3 °C
   • −4 °C
   • −8 °C
   Check

4. 4. Write each set of temperatures in order starting with the coldest temperature. Use the number line to help you. Remember that as you move to the right (→) numbers get larger. −2 °C, 2 °C, 7 °C, −10 °C

   Put these in order.

   • 2 °C
   • −2 °C
   • 7 °C
   • −10 °C
   Check

5. 5. Write these numbers in order starting with the smallest. −5, 5, 10, −15, 0, −10

   Put these in order.

   • −5
   • 10
   • −15
   • −10
   • 5
   • 0
   Check

6. 6. The numbers −15, −10, −5, 0, 5, 10 make a pattern. Which describes it?

   • Each number is double the one before.
   • Each number is 10 more than the one before.
   • Each number is 5 more than the one before.
   • Each number is 5 less than the one before.
   Check

7. 7. The numbers −15, −10, −5, 0, 5, 10 make a pattern. If you continue it, will you write 71?

   • Yes
   • No
   Check

8. 8. Which is larger, −4 or −1?

   • −1 > −4
   • −4 = −1
   • −4 > −1
   • −1 < −4
   Check

9. 9. If −7 < ☐ < −4, what whole number could ☐ be?

   • −6
   • −7
   • −4
   • −3
   Check

10. 10. Write each set of temperatures in order, starting with the coldest temperature. −4 °C, 1 °C, −8 °C, −2 °C, 3 °C

    Put these in order.

    • 3 °C
    • 1 °C
    • −4 °C
    • −8 °C
    • −2 °C
    Check

11. 11. Write each set of temperatures in order, starting with the coldest temperature. −2 °C, 4 °C, −7 °C, −13 °C, 13 °C

    Put these in order.

    • −2 °C
    • 13 °C
    • 4 °C
    • −7 °C
    • −13 °C
    Check

12. 12. Write each set of temperatures in order, starting with the coldest temperature. 6 °C, −6 °C, 0 °C, −7 °C, −4 °C

    Put these in order.

    • 0 °C
    • −6 °C
    • −7 °C
    • −4 °C
    • 6 °C
    Check

13. 13. Compare each pair: 6 ☐ −17, −16 ☐ −13, 0 ☐ −2

    • >, <, >
    • >, >, >
    • <, >, <
    • <, <, >
    Check

14. 14. Use the numbers −13, −4, 7, −17, 5, 12, −3, one in each box, to make ☐ < ☐ < ☐ < ☐ and ☐ > ☐ > ☐ correct. Which is correct?

    • −3 < −4 < −13 < −17 and 5 > 7 > 12
    • −13 < −17 < −4 < −3 and 12 > 7 > 5
    • −17 < −13 < −4 < −3 and 5 < 7 < 12
    • −17 < −13 < −4 < −3 and 12 > 7 > 5
    Check

15. 15. Tick the 2 numbers that are greater than −6 but less than 4.

    Tick all the right answers.

    • ☐ −8
    • ☐ −10
    • ☐ 5
    • ☐ −4
    • ☐ 0
    Check

16. 16. Hassan's sequence adds the same amount each time: −22, ☐, ☐, ☐, 6. What are the missing numbers?

    • −16, −10, −4
    • −15, −8, 1
    • −18, −14, −10
    • −15, −8, −1
    Check

17. 17. Which is the coldest place in the table of January temperatures?

    • Moscow, Russia (−8 °C)
    • Beijing, China (−3 °C)
    • Karachi, Pakistan (18 °C)
    • Ulaanbaatar, Mongolia (−20 °C)
    Check

18. 18. Which is the warmest place in the table of January temperatures?

    • Karachi, Pakistan (18 °C)
    • Istanbul, Turkey (5 °C)
    • Ulaanbaatar, Mongolia (−20 °C)
    • Delhi, India (14 °C)
    Check

19. 19. The table shows the average temperatures in some cities in January. Put the temperatures in order starting with the coldest.

    Put these in order.

    • 1 °C
    • 18 °C
    • 14 °C
    • −3 °C
    • −8 °C
    • 5 °C
    • −20 °C
    Check

20. 20. Compare each pair: −3 ☐ −4, −19 ☐ 11, 0 ☐ −1

    • <, >, <
    • <, <, >
    • >, >, >
    • >, <, >
    Check