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Pairs of Numbers

Stage: 1 Challenge Level: Challenge Level:1

1-10

If you have ten counters numbered $1$ to $10$, how many can you put into pairs that add to $10$?

Can you use them all?
Say how you got your answer.
 
 

Now put the counters into pairs to make $12$.
  • Can you use them all?
  • Say how you got your answer.
Now put the counters into pairs to make $13$.
  • Can you use them all?
  • Say how you got your answer.

Now put the counters into pairs to make $11$.
  • Can you use them all?
  • Say how you got your answer.