Number line subtraction

This task is about showing how to solve equations on a number line.
Read through the example in the box before you start.
 
Example:
Pere had to solve 46 – = 24 using a number line.
He knew that 46 – 20 = 26, and that 26 – 2 = 24, so 46 – 22 = 24
He showed this as jumps on the number line and then wrote the answer in the box:

For each question below:

  1. Show how to solve the equations on the number line.
  2. Write the answer in the empty box.
 
a)
 
Use the number line below to show how to solve:  38 –  = 15
 
 
 
 
 
numberline-15-38.png
 
 
b)
 
Use the number line below to show how to solve:  53 –  = 19
 
 
 
 
 
numberline-19-53.png
 
 
c)
 
Use the number line below to show how to solve:  82 –  = 35
 
 
 
 
 
numberline-35-82.png