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Worksheet: Decomposing the Number 10

Q1:

There are lots of ways to make 10. What is the missing sum?

  • A 6 + 3
  • B 5 + 4
  • C 6 + 4

Q2:

Complete the following: 7 + 1 + = 1 0 .

  • A3
  • B9
  • C8
  • D2
  • E1

Q3:

Here are 9 counters.

Daniel colored the counters.

His picture shows that 5 plus 4 makes 9.

Pick another way to make 9.

  • A
  • B

Pick another way to make 9.

  • A
  • B

Pick another way to make 9.

  • A
  • B

Q4:

Find another way to make 10.

  • A
  • B
  • C

Q5:

Which of the following is equal to 10?

  • A 1 + 7
  • B 9 + 7
  • C 9 + 8
  • D 9 + 1
  • E 1 + 8

Q6:

Find the two numbers from 7, 9, 3, 5, 10 which add up to 10.

  • A7, 10
  • B9, 5
  • C9, 3
  • D7, 3
  • E7, 9

Q7:

This picture shows 4 + 6 = 1 0 .

Which picture shows 2 + 8 = 1 0 ?

  • A
  • B
  • C

Q8:

Complete the following: p u r p l e o w e r s r e d o w e r s o w e r s . + 6 = 1 0