3 years ago

I need help with number 18 & 19 please

1 answer:

5 0

Number 19 I think is if you add the awnser to one of the numbers you where subtracting and you get the other number you where subtracting you are right like...

Lets say you had the problem 3-2 which is obviously 1 but if you did 2+1 it's 3 so that's how you check.

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