Worksheet: Subtraction Strategies within 20: Breaking Apart

In this worksheet, we will practice subtracting one-digit numbers from teen numbers by first subtracting the ones to make ten and then subtracting the remaining amount.

Q1:

We can make 10 to help us subtract.

Pick the calculation that matches 1 4 6 .

  • A 1 0 6
  • B 1 4 4
  • C 1 4 4 2

Fill in the blank: 1 4 6 = .

Q2:

Which subtraction sentence is equal to 1 8 9 ?

  • A 1 1 0
  • B 9 1 8
  • C 1 9 8
  • D 1 0 1
  • E 8 1 9

Q3:

We know that 5 + 7 = 1 2 .

What is 1 2 7 ?

Q4:

Fill in the blank: 1 6 5 = + 1 .

Q5:

Amira is subtracting by making 10.

Which calculation should she do first?

  • A 1 3 3 = 1 0
  • B 1 3 2 = 1 1

Which calculation should she do next?

  • A 1 0 2 = 8
  • B 1 0 + 2 = 8

Q6:

Michael subtracted 7 from 13 by first making 10.

Now, he wants to subtract 8 from 12.

Which number should he write in the blue circle?

Which number should he write in the red circle?

What is 1 2 8 ?

Q7:

What is 13 take away 3?

Q8:

Yara wants to find 1 3 7 .

What number should she write in both boxes?

What is 1 3 7 ?

Q9:

We can make 10 to help us subtract.

Fill in all the missing numbers.

  • A
  • B
  • C

Q10:

Adam started with 16.

He took away 6 to make 10, then took away 2 more.

Pick a calculation that is the same as what Adam did.

  • A 1 6 6
  • B 1 6 4
  • C 1 6 8

Q11:

Look at how Daniel made 10 to help him subtract.

Use his method to find the answer.

Help him finish this new calculation.

What should he do next to find 1 3 7 ?

  • A
  • B
  • C

Find the answer.

Q12:

Choose the two numbers that make the equation true.

  • A18, 14
  • B15, 14
  • C13, 7
  • D14, 13
  • E14, 3

Q13:

What is 16 take away 7?

Q14:

Madison was asked to solve .

She wrote

Is her solution correct?

  • Ayes
  • Bno

Q15:

Sarah was asked to solve 1 5 8 .

She wrote

Is her solution correct?

  • Ayes
  • Bno

Q16:

Ramy tried to solve 1 7 8 by using the facts about making 10, but he got the answer wrong.

His teacher circled the mistake in his answer. Help him by finding 1 7 8 .

Q17:

Jimmy tried to solve by using the facts about making 10, but he got the answer wrong.

His teacher circled the mistake in his answer. Help him by finding .

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