3.OA.8 Review

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some are taken away.

Front

What does the expression 19 - 2 - 6 represent?

Back

It represents the total number of students left in the classroom after 2 students were absent and 6 went to the library.

Front

How do you find the total number of items left after borrowing?

Back

To find the total left, subtract the number of items borrowed from the original total.

Front

If Ms. Pang had 55 paper clips and Sophie borrowed 7 and Terrell borrowed 12, how many paper clips are left?

Back

55 - 7 - 12 = 36 paper clips left.

Front

What is the goal of a math test score?

Back

The goal is the total number of points a student wants to achieve after all tests.

Front

How do you calculate the points needed on a test to reach a goal?

Back

Subtract the total points already scored from the goal to find out how many more points are needed.

Front

What does it mean to add and then subtract in a problem?

Back

It means to first combine numbers and then take away some from the total.

Front

If Craig buys 20 tickets and gets 5 more, how many does he have before using any?

Back

20 + 5 = 25 tickets.

Front

What is the total number of tickets Craig has left after using 7?

Back

25 - 7 = 18 tickets left.

Front

What is the process of giving away items called?

Back

Giving away items is called distribution.