Example Questions

Example Question #1 : Operations

Solve:

Explanation:

When subtracting any number by  the only number that will change in your answer is the hundreds place.

Example Question #2 : Operations

The pet store has  goldfish in a tank. A teacher bought  goldfish for her school’s fish tank. How many goldfish does the pet store have left?

Explanation:

This is a subtraction problem because we want to know how many goldfish the pet store has left over after the teacher buys the first and takes them away from the store. We take the number of goldfish that the store had and then subtract the number that the teacher bought.

Example Question #3 : Operations

David is  taller than Alison. Alison is  tall. How tall is David?

Explanation:

This is an addition problem because we have the difference in height from the question. Alison is  inches tall and David is  inches taller than her,  is our difference. We can add our difference to Alison's height to find out how tall David is.