In this worksheet we have to work out a subtraction by counting on using a number line.

Example

Work out 73 - 38 =  __

We use the number line to count up from the smaller number to the larger number.  

First step: go to the next ten, i.e. 40 here

Second step: count up in tens to the ten below your given number, i.e. 70 here

Third step: count up to the given number, i.e. 73 here

Answer is 2 + 30 + 3 = 35