Worksheet: Addition of Two One-Digit Numbers

In this worksheet, we will practice using ten frames to add two single-digit numbers by first making ten.

Q1:

Find an expression that has the same answer as 6 + 8 .

  • A 1 0 + 3
  • B 9 + 4
  • C 8 + 5
  • D 1 0 + 4

Q2:

Fill in the blank: 7 + 9 = 1 0 + .

Q3:

One way to make addition easier is to use addition facts that we already know.

Let us try to find 7 + 8 by first making 10.

We need to add 3 more to 7 to make 10. So move 3 green squares over.

Now we have the same number of squares, but there are 10 in the first ten-frame, and 5 in the second.

So 7 + 8 is the same as 1 0 + 5 which makes 15.

Now you have a go. What is 6 + 9 ?

Q4:

Sherif is adding by making 10.

Which calculation should he do first?

  • A 9 + 1 = 1 0
  • B 9 + 5 = 1 4

Which calculation should he do next?

  • A 1 0 + 5 = 1 5
  • B 1 0 + 6 = 1 6

Q5:

Dalia added 7 and 6 by first making 10.

Now, she wants to add 8 and 7.

Which number should she write in the blue circle?

Which number should she write in the red circle?

What is 8 + 7?

Q6:

There are 10 fish. Fill in the numbers to find another way to make 10.