Two Addends and a Sum Using whole numbers, find pairs of addends that add to 11. e.g. 3 + 8 = 11
Make a table with your information to see if you can find and predict the patterns.
Find a rule for the number of addition pairs when the sum is ODD and the sum is EVEN.
The idea for this investigation came from The Maths' Connection published by Family Maths Trust

