Question

there are two equal groups of 8 books on the Shelf one group has reading books in the other three of the books are math books and the rest of the science books how many science books are there

Answer 1

the answer is 5, there are 2 groups of 8 and we are looking at one of them. 3 of 8 are mat so all we have to do is subtract 3 from 8 and you have 5.