Monday, 24 October 2011



What is Subtraction?

Subtraction is a process that we use to find the result of taking numbers away from each other, for example: 45 minus 12 equals 33

In mathematics we usually use symbols instead of words though, for subtraction sums you need to know that:

the symbol for minus is -       and          the symbol for equals is =
so the above sum would change to be: 33 - 12 = 45
On paper it is easier to solve these sums if you write them out in a different way:
- 12



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