100 Square trick!
1. Use counters.
2. Draw dots and count how many altogether.
3. Put your finger on 15 on the 100 square and count on 10 more hops.
Just move down 1 square!
This adds '10 more' but you can also find '10 less' by moving up the 100 square!
If you know that 5+1=6, then you will be able to quickly work out 15+1, 25+1 or 165+1.
Making sums with 3 numbers
You remember to share your chocolate with Mrs Lowes!
If you have 32 bars of chocolate, draw 2 plates and share them out. Remember to make it fair, we have to have the same amount!
How many do you have? How many do I have?
Is it fair?