# Lesson Worksheet: Adding Two-Digit Numbers on Number Lines Mathematics • 1st Grade

In this worksheet, we will practice using a number line to add two-digit numbers to two-digit numbers by making jumps of ten and one.

Q1:

Look at how Liam added 32 to 27 by adding 3 tens and then 2 ones. Use number lines to find the answers to these sums.  Q2:

Isabella is adding using a number line. Pick the sum she is working on.

• A
• B

Q3:

Use the given number line to solve by jumping tens and ones. Q4:

Look at the number line. Noah started at 32 and moved forward 5. Write the calculation that he did.

• A
• B
• C

Use the number line to find the following: .

Q5:

Benjamin and James tried to solve using the number line. Who had the right answer and used the number line correctly? • ABenjamin
• BJames
• CBoth of them

Q6:

Use the number line to complete the following addition sentence: . Q7:

On this number line, Madison started at 12 and jumped until she reached 41 as shown: Which of the following number sentences describes what Madison did?

• A
• B
• C

Q8:

Find the number sentence that matches this number line. • A
• B
• C

Q9: 