Answer :

not hard at all

16 - 7 = 9

so you can mean difference as a percentage of the original statement, as in 160 - 7 = 90

or, just plain simple 9 difference, as in 10 - 1 = 9, or 100 - 91 = 9

sarkhan2018

You can explain this subtraction from many different aspects. One of them could be just working with these given numbers when we increase them proportionally, final answer also increases proportionally. For example,


16 - 7 = 9

9

160 - 70 = 90


If we add the final results to the subtracted number, we will get the number itself. For example,


16 - 7 = 9

16 = 7+ 9

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