Loading...

Practice Part 3

How can we use a number line to help us add?

Goal:

Goal:

thinking monkey

Think About It!

Goal: How does a number line help with addition?

Now we have a number line as a strategy for our addition toolbox! Here are the steps for using a number line to add. Click each step. When you do, you will also see each step on the number line to solve the addition sentence 5 + 6 = ____.

+1
+1
+1
+1
+1
 
11

5 + = __

Use the slideshow below to practice what happens when you change the addends! Remember, the larger addend will change where you start (in the green circle).The smaller addend will change the number of jumps! Remember, we always start with the larger addend, even if it is not listed first!

  1. Click on the larger addend in the addition sentence.
  2. Place a dot above the larger addend on the number line.
  3. Make “jumps” to count up using the second, smaller addend.
  4. The last number you land on is the sum!
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
 
16

7 + = __

  1. Click on the larger addend in the addition sentence.
  2. Place a dot above the larger addend on the number line.
  3. Make “jumps” to count up using the second, smaller addend.
  4. The last number you land on is the sum!
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
 
19

8 + = __

  1. Click on the larger addend in the addition sentence.
  2. Place a dot above the larger addend on the number line.
  3. Make “jumps” to count up using the second, smaller addend.
  4. The last number you land on is the sum!
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
 
13

+ 3 = __

If we want to add 7 + 9, which addend should we circle in the addition sentence? Click the correct addend below.

+