Composing and Decomposing Numbers

Match the number 20 to the sum of two numbers.

• 10 + 10

• 12 + 7

• 15 + 4

Match 25 to the sum of two numbers.

Match the number 30 to the sum of two numbers.

• 25 + 5

• 20 + 9

• 15 + 15

Match the number 35 to the sum of two numbers.

• 30 + 5

• 25 + 9

• 20 + 15

Match 40 to the sum of two numbers.

• 35 + 5

• 30 + 10

• 25 + 15

Match 45 to the sum of two numbers.

Match the number 50 to the sum of two numbers.

• 45 + 5

• 40 + 10

• 35 + 15