Worksheet: Adding One-Digit Numbers by Making Ten

In this worksheet, we will practice adding two one-digit numbers by first making ten.

Q1:

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

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

Q2:

Fill in the blank: 7+9=10+.

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 10+5 which makes 15.

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

Q4:

Ethan 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 + 6 = 1 6
  • B 1 0 + 5 = 1 5

Q5:

Olivia 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:

Which addition sentence is equal to 7+9?

  • A
  • B
  • C

Q7:

Q8: