Number Bonds
What numbers does 15 break down into?
What is 10 & 5
18-3=
What is 15
What numbers does 18 break down into?
What is 10 & 8
What numbers does 12 break down into?
What is 10 & 2
What numbers does 19 break down into?
What is 10 & 9
10+5=
What is 15
What numbers does 17 break down into?
What is 10 & 7
13+8=
What is 21
10-5=
What is 5