x=92 a)what is a quick easy strategy to add x + z using mental math ?
z=46 b)use that ans. from a) to divide in 38.
c) is it whole?decimal? show your thinking. use clear pictures numbers and words.
Increase 92 by 8 = 100
Decrease 46 by 8 = 38
So....x + y = 100 + 38 = 138
If you are saying divide this into 38, the answer will be a decimal.....this will always be true when a larger positive number is divided into a smaller positive one .......
