# Worksheet: Subtraction Strategies within 20: Breaking Apart

Q1:

We can make 10 to help us subtract.

Pick the calculation that matches .

• A
• B
• C

Fill in the blank: .

Q2:

She wrote

Is her solution correct?

• Ayes
• Bno

Q3:

Sophia is subtracting by making 10.

Which calculation should she do first?

• A
• B

Which calculation should she do next?

• A
• B

Q4:

What is 13 take away 3?

Q5:

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 ?

Q6:

Emma was asked to solve .

She wrote

Is her solution correct?

• Ayes
• Bno

Q7:

Victoria wants to find .

What number should she write in both boxes?

What is ?

Q8:

We know that .

What is ?

Q9:

What is 16 take away 7?

Q10:

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 ?

• A
• B
• C

Q11:

We can make 10 to help us subtract.

Fill in all the missing numbers.

• A
• B
• C

Q12:

Choose the two numbers that make the equation true.

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

Q13:

Fill in the blank: .

Q14:

James 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 .

Q15:

Daniel started with 16.

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

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

• A
• B
• C

Q16:

Earl 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 .

Q17:

Which subtraction sentence is equal to ?

• A
• B
• C
• D
• E