Do you know how to identify what is asked in the problem?

John had 15 apples. He ate 5 apples. How many apples does he have left?

• Number of apples John had.

• Number of apples John ate.

• Number of apples John has left.

Lucy had 20 books. She gave 7 books to her friends. How many books does she have now?

• Number of books Lucy has now.

• Number of books Lucy gave away.

• Number of books Lucy had initially.

A farmer had 30 chickens. He sold 12 chickens. How many chickens does he have left?

• Number of chickens the farmer sold.
  

• Number of chickens the farmer has left.

• Number of chickens the farmer had initially.

Emily bought 25 pencils. She lost 10 pencils. How many pencils does she have left?

• Number of pencils Emily bought.
  

• Number of pencils Emily lost.

• Number of pencils Emily has left.

Mark had 40 marbles. He gave 18 marbles to his brother. How many marbles does he have left?

• Number of marbles Mark has left.

• Number of marbles Mark gave to his brother.

• Number of marbles Mark had initially.