Magic Words in Math

If you have 25 apples and you buy 15 more, how many apples do you have in total?

There are 40 students in a class. If 12 students go home, how many students are left?

Samantha has 30 stickers. She gives 8 stickers to her friend. How many stickers does she have now?

A farmer has 50 cows. He sells 20 cows. How many cows does he have left?

If you read 15 pages of a book and then read 10 more pages, how many pages have you read in total?

Liam has 45 marbles. He loses 9 marbles. How many marbles does he have now?

There are 60 candies in a jar. If 25 candies are taken out, how many candies remain in the jar?

Emma has 70 balloons. She pops 15 balloons. How many balloons does she have left?

If a toy costs 30 dollars and you have 50 dollars, how much money will you have after buying the toy?

A library has 100 books. If 35 books are checked out, how many books are still in the library?