Math 7 · Unit 9: Sequences and functions · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Find the missing output number in this function machine.

   • 1.5
   • 5
   • 32
   • 6
   Check

2. 2. Find the missing output number in this function machine.

   • 45
   • 18
   • 5
   • 12
   Check

3. 3. Find the missing output numbers in this function machine.

   Fill the blanks with these.

   • 18
   • 16
   • 0
   • 2
   Check

4. 4. Find the missing output numbers in this function machine.

   Fill the blanks with these.

   • 13
   • 10
   • 40
   • 7
   Check

5. 5. Find the missing output numbers in this function machine.

   Fill the blanks with these.

   • 17
   • 21
   • 8
   • 9
   • 6
   Check

6. 6. Find the missing input number in this function machine.

   • 1
   • 7
   • 12
   • 3
   Check

7. 7. Find the missing input number in this function machine.

   • 8
   • 48
   • 16
   • 3
   Check

8. 8. Find the missing input numbers in this function machine.

   Fill the blanks with these.

   • 11
   • 4
   • 8
   • 12
   Check

9. 9. Find the missing input numbers in this function machine.

   Fill the blanks with these.

   • 5
   • 20
   • 6
   • 12
   Check

10. 10. Find the missing input numbers in this function machine.

    Fill the blanks with these.

    • 3
    • 17
    • 21
    • 23
    • 7
    Check

11. 11. Copy these function machines and find the missing inputs and outputs: fill in the empty squares.

    Fill the blanks with these.

    • 8
    • 12
    • 19
    • 2
    • 9
    Check

12. 12. Copy these function machines and find the missing inputs and outputs: fill in the empty squares.

    Fill the blanks with these.

    • 3
    • 27
    • 13
    • 14
    • 17
    Check

13. 13. Copy these function machines and find the missing inputs and outputs: fill in the empty squares.

    Fill the blanks with these.

    • 15
    • 50
    • 20
    • 175
    • 7
    Check

14. 14. Copy and complete this inverse function machine and table of values: use the inverse machine to find the inputs.

    Fill the blanks with these.

    • 24
    • 80
    • 11
    • 18
    • 64
    Check

15. 15. Copy and complete this inverse function machine and table of values: use the inverse machine to find the inputs.

    Fill the blanks with these.

    • 8
    • 30
    • 32
    • 14
    • 13
    Check

16. 16. Copy and complete this inverse function machine and table of values: use the inverse machine to find the inputs.

    Fill the blanks with these.

    • 16
    • 5
    • 10
    • 34
    • 23
    Check

17. 17. Work out the rule to complete this function machine. What is the rule?

    • + 4
    • + 3
    • × 3
    • × 2
    Check

18. 18. Work out the rule to complete this function machine. What is the rule?

    • ÷ 3
    • − 10
    • − 14
    • ÷ 5
    Check

19. 19. Work out the rule to complete this function machine. What is the rule?

    • + 30
    • × 7
    • + 18
    • × 6
    Check

20. 20. Copy and complete the mapping diagram for this function machine. Where do the arrows from inputs 3, 5 and 6 go?

    • 3 → 12, 5 → 20, 6 → 24
    • 3 → 7, 5 → 9, 6 → 10
    • 3 → 4, 5 → 4, 6 → 4
    • 3 → 7, 5 → 9, 6 → 11
    Check