Worksheet: Adding Numbers up to 20 on a Number Line

Q1:

Use the number line to complete the following addition sentence.

Q2:

On this number line, Jennifer started at 13 and counted forward until she reached 18.

Which number sentence describes what Jennifer did?

A
B
C
D
E

Q3:

I start at a number and count forward. Does this represent adding or subtracting?

Aadding
Bsubtracting

Q4:

Count on to add.

Find the total.

A16
B15
C14

Q5:

Count on to add.

Find the total.

Q6:

Victoria was playing a game. First, she moved her counter 4 spaces forward. Then, she moved it 7 spaces forward.

How many spaces from the start is her counter?

Q7:

On this number line, Sophia started at 4 and counted forward three.

Which of the following describes what Sophia did?

AShe added four.
BShe added three.
CShe added seven.
DShe took away three.
EShe took away seven.

Q8:

Find the number sentence that matches this number line.

A3 + 4 = 8
B8 − 4 = 4
C3 + 5 = 8
D8 − 5 = 3
E3 + 3 = 8

Q9:

Fill in the missing number.

Use the number line if you need to.

Q10:

Fill in the missing number.

Use the number line if you need to.

Q11:

Fill in the missing number.

Use the number line if you need to.

Q12:

To find the sum of , we can use a number line.

Start at 11
Count on 6
Land on 17

So, we now know that .

Use a number line to find the sum of .

Q13:

Count on to add.

Amelia started this calculation on a number line. Finish the calculation to find the total.

Q14:

Count on to add.

Find the total.

A13
B14
C12

Q15:

Consider the following figure.

What sum does this diagram represent?

A
B
C
D
E

What is the distance between the first addend (2) and the sum?

A
B
C
D

Q16:

We can add numbers on number lines by thinking about length.

Noah took a bar of length 13 and added a bar of length 6. Read how he showed this on the number line.

Write an addition equation to show what he did.

A
B
C