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Maths
Composition of numbers 11 to 19

Starter quiz

  • What is the missing part?
    What is the missing part?
    • '1' ✓
  • What is the sum of the parts in this picture?
    What is the sum of the parts in this picture?
    • '10' ✓
  • Which equation represents this part-part-whole model?
    Which equation represents this part-part-whole model?
    • 9 = 1 + 8  ✓
    • 8 + 1 = 9  ✓
    • 8 = 1 + 9
    • 9 + 1 = 8
  • I have 7 pencils altogether. 3 are red and 4 are yellow. Which equations would represent this?
    I have 7 pencils altogether. 3 are red and 4 are yellow. Which equations would represent this?
    • 3 + 7 = 4
    • 7 = 3 + 4  ✓
    • 3 = 7 + 4
  • What does the 2 represent in this equation? 2 + 8 = 10
    What does the 2 represent in this equation? 2 + 8 = 10
    • The hidden counters.  ✓
    • The whole group.
    • The counters we can see.
  • Use the number patterns in the equations to find the missing addend in the last equation. 4 + 0 = 4 3 + 1 = 4 2 + 2 = 4 1 + ______ = 4
    • '3' ✓
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