Practise subtraction within 20 - including sums that bridge 10 - with the help of a number line. There are 2 worksheets in this set.
Subtraction by Counting Back Worksheets Set 3
Here are two more worksheets to give children practice at subtracting within 20 using the counting back method. We've included an extra problem for them to think about too.
This illustration shows how our Munching Monster might eat up 6 lollies in 2 bites - the first above the 10 and the second below - to find the answer to a subtraction problem.