# 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 . • A
• B
• C
• D

Q2:

Fill in the blank: .

Q3:

Let us try to find 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 is the same as which makes 15.

Now you have a go. What is ? Q4:

Ethan is adding by making 10. Which calculation should he do first?

• A
• B

Which calculation should he do next?

• A
• B

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 ? • A • B • C Q7: Q8: • A • B • C • D Q9:

Scarlett added 9 and 7 by making ten. What number is missing from her solution?

Q10:

David tried to solve by using the making ten strategy, but he got the answer wrong. His teacher circled the mistake in his answer. Help him by finding .

Q11:

Anthony was asked to solve .

He wrote Is his solution correct?

• AYes
• BNo