Review

Front

What is subtraction?

Back

Subtraction is the mathematical operation of finding the difference between two numbers. It involves taking one number away from another.

Front

What is the result of 852 - 232?

Back

620

Front

How do you find the number of boys in a school if you know the total number of students and the number of girls?

Back

Subtract the number of girls from the total number of students.

Front

If there are 3,420 students and 1,911 are girls, how many boys are there?

Back

1,509 boys.

Front

What does it mean to give away a fraction of a collection?

Back

It means to take a portion of the total amount and distribute it to others.

Front

If Chris had 25 marbles and gave away 2/5 of them, how many marbles did he give away?

Back

10 marbles.

Front

What is addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Front

If Dylan ate 10 hamburgers and his brother ate 5, how many hamburgers did they eat in total?

Back

15 hamburgers.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 3 1/4.

Front

If Caroline collected 3 1/4 bags of bottles and 1/3 are glass, how many bags are plastic?

Back

2 1/6 bags are plastic.