Compose and Decompose 2 Digit Numbers

Front

How many ones are there in 32?

Back

2

Front

How many groups of ten are there in 82?

Back

8

Front

What is another way to represent the number 38?

Back

1 group of ten + 28 ones

Front

What is the value of 8 in the number 83?

Back

80

Front

What does it mean to decompose a number?

Back

To break a number down into its parts, like tens and ones.

Front

What does it mean to compose a number?

Back

To combine parts, like tens and ones, to make a number.

Front

How many tens are in the number 45?

Back

4

Front

What is the value of 3 in the number 73?

Back

3

Front

If you have 2 groups of ten and 5 ones, what number do you have?

Back

25

Front

What is 1 group of ten and 9 ones?

Back

19