Question

how do I write out the problem to show how I got the answer..I know the answer by looking at it. question a or b please

Answer 1

I think A 3×5=15 so 2×5=10

Answer 2

Sry if you can't understand the picture. its hard to write it out on the computer

just multiply it by 5/5 because it just equals 1 so it wont change the actual value.