Revise mental subtraction with 2-digit numbers. Plenty of different techniques needed to be quick with this.
A quick look back at the vocabulary of subtraction.
Rapid mental subtraction with negative numbers.
Subtracting multiples of 100. Don't forget that there is a printout option after ten questions.
Mental subtraction, working with larger numbers. Quite straightforward really.
An excellent test to see how good mental subtraction skills are. Just one minute to answer correctly as many as possible.