Worksheet: Adding by Breaking Apart Tens and Ones

In this worksheet, we will practice adding a 2-digit number to a 2-digit number by breaking the numbers apart and adding ones then tens.

Q1:

We can break apart numbers into tens and ones to add.

Add the tens.

What is 4 0 + 1 0 ?

Add the ones.

What is 3 + 6 ?

Add the sums to find 4 3 + 1 6 .

Q2:

Break apart the numbers into tens and ones to add.

Q3:

Use the picture to help you complete the number sentence: 5 2 + 3 2 = .

Q4:

We can use what we know about place value to add two-digit numbers quickly.

1 4 + 2 5 =

Find the answer by adding the tens together and then the ones.

Q5:

Which frame matches 3 7 + 1 2 ?

  • A
  • B
  • C

Q6:

Which of the following matches the sum shown with the place value blocks?

  • A 2 3 + 4 6
  • B 1 3 + 4 6
  • C 6 0 + 6

Q7:

We can break apart numbers into tens and ones to add.

Follow the steps to find 3 5 + 2 4 .

First, add the 2 tens to 35.

Then, add on the 4 ones.

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