Question

suppose you are trying to increase your coin collection to at least 500 coins. How many coins do you need if you already have a collection of 375 coins?

Answer 1

Since you're trying to make bigger what you already have, you need to subtract from what you are trying to get:

500 - 375 =

125

Answer: 125

lėarn somėthing - b

Answer 2

You will need to add 125 coins to get 500 coins from 375.