A set of 36 subtraction flashcards using single- and double-digit numbers.
The flashcards have been designed to practise the following strategies:
- counting on
- counting back
- using doubles facts
- subtracting 10 from a double-digit number
- using rainbow number facts to subtract from a number ending in a zero
- making tens, i.e. partitioning the subtrahend by heading towards a number that ends in zero
- using the inverse operation (fact families) to solve.
While most flashcards contain the minuend and subtrahend, some flashcards have one of these missing and provide the difference instead.