Grade 3 Think Up Unit 13

Front

What are compatible numbers?

Back

Pairs of numbers that can easily be computed mentally, such as 23 + 27 is close to 25 + 25 so the estimate is 50.

Front

What does approximate mean?

Back

To find a result that is close to the exact answer; close or near the exact answer.

Front

What is an addend?

Back

A number that is added to another number.

Front

What does it mean to add?

Back

To combine two or more groups.

Front

What is an estimate?

Back

An answer that is close to the exact answer.

Front

What is subtraction?

Back

To take away or remove something from a group or total.

Front

What is a sum?

Back

The total you get after adding numbers together.

Front

What is the difference?

Back

The result of subtracting one number from another.

Front

What is multiplication?

Back

A way to find the total of one number added to itself a certain number of times.

Front

What is division?

Back

To divide a number into equal parts and find the result.