This worksheet can be used as a check to see how well your child has learned their subtraction facts. There are several ways that this page could be tackled, depending on the confidence and knowledge of the child. Some children may want to use the number line to count back, others might prefer to use their fingers. What we are really hoping for, however, is that some of these facts have been committed to memory: the calculation does not have to be worked out by counting back, rather the fact is already known. Those children who know their number facts will complete this page much more quickly than those who don’t.