Don’t forget the ‘=’ sign doesn’t just mean we need to answer, it can also be a balancing point!

The rule that we have developed in 5MR for balancing a sum is…..

                         ‘whatever operation you use (addition, multiplication) with one pair of numbers, you must

                          do the opposite with the other pair’  

*remember to match the closest numbers on opposite sides as pairs!

eg.    63 + 29 = 30 + X

We added one to get from 29 to 30, so we must take one away from 63, therefore X = 62

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