we will be learning about three more facts that you can get from just one subtraction fact.
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Example:
We know that 7,049 – 2,143 = 4,906
So, we can write three more facts about these numbers.
7,049 – 4,906 = 2,143
4,906 + 2,143 = 7,049
2,143 + 4,906 = 7,049
Here is an easier example:
If we know that 100 – 30 = 70, then we can also work out the following:
100 – 70 = 30
70 + 30 = 100
30 + 70 = 100
