Compose and decompose numbers up to 100

Front

What is 3 tens and 8 ones?

Back

30 + 8

Front

How do you decompose the number 85?

Back

8 tens and 5 ones

Front

What is the decomposition of 99?

Back

9 tens and 9 ones

Front

I am a number with 4 tens and 9 ones. What number am I?

Back

49

Front

What is the number for eighty-four?

Back

84

Front

What does it mean to compose a number?

Back

To combine tens and ones to form a number.

Front

What does it mean to decompose a number?

Back

To break down a number into tens and ones.

Front

How many ones are in the number 70?

Back

0 ones.

Front

What is 5 tens and 2 ones?

Back

52

Front

What is the value of 6 tens?

Back

60