AN N1/E1.5
Subtract single-digit numbers from numbers up to 10 (a) understand the operation of subtraction and related vocabulary, e.g. difference, take away, less than (b) know how to add back to check, e.g. 10 - 6 = 4, 6 + 4 = 10 (c) understand subtraction is not commutative and that, using whole positive numbers, you can only subtract a number from itself or a larger one (d) understand that subtracting zero leaves a number unchanged