# Lesson Worksheet: Adding One-Digit Numbers on a Number Line by Making Ten Mathematics • 1st Grade

In this worksheet, we will practice modeling the addition of two one-digit numbers on a number line by making two jumps, the first to 10 and the second to the total.

Q1:

Use the number line to add. Hint: Add to make 10 first. Q2:

Jackson is adding 8 and 6 by first making 10. Find the missing number in his calculation. Q3:

Use the number line to add.

Hint: Add to make 10 first. Q4:

Look at how Chloe used a number line to find . First, she added 2 to make 10.

How much was left to add? What is ?

Q5:

Look at the calculation on the number line. First, we added 2 to make 10. Then, we added 4 more.

How much did we add altogether? What is ?

Q6:

What is ?

Hint: Use a number line and add to make 10 first. Q7:

What is ?

Hint: Finish the calculation on the number line. Think about how many more you need to add to complete the calculation? Q8:

Help David finish solving an addition problem. He wants to find . First, he added 4 to make 10. How much more should he add? What is ?

Q9:

Use a number line to find .

Hint: Add to make 10 first. Q10:

Use a number line to find .

Hint: Add to make 10 first. 