Counting objects in groups of ten

 

Group 1

Group 2

1. If you have 4 tens and three ones, what is the number? If you add 2 ones what is the new number?

2. If you have 4 tens and three ones, what is the number? If you add 2 ones what is the new number?

3. If you have 4 tens and three ones, what is the number? If you add 2 ones what is the new number?

4. If you have 4 tens and three ones, what is the number? If you add 2 ones what is the new number?