Or search by topic
Pairs of Numbers printable sheet
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 $12$.
Now put the counters into pairs to make $13$.
Now put the counters into pairs to make $11$.
Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?