Front

What is problem solving?

Back

Problem solving is the process of finding solutions to difficult or complex issues.

Front

What does it mean to subtract?

Back

Subtracting means taking one number away from another.

Front

If Mrs. Smith's pool was 80 degrees and it dropped to 50 degrees, how do you find the change in temperature?

Back

You subtract the lower temperature from the higher temperature: 80 - 50 = 30 degrees.

Front

What number sentence would you use to find out how many girls are in the band if there are 84 students and 37 are boys?

Back

You would use 84 - 37 = ? to find the number of girls.

Front

What operation do you use to find out how many cookies are left after giving some away?

Back

You use subtraction to find out how many cookies are left.

Front

If Mrs. Ritchie had $80 and spent $23, how do you find out how much money she has left?

Back

You subtract the amount spent from the total: $80 - $23 = ?.

Front

What is a number sentence?

Back

A number sentence is a mathematical statement that shows a relationship between numbers using operations.

Front

What does it mean to add?

Back

Adding means putting together two or more numbers to find a total.

Front

What is a bar model?

Back

A bar model is a visual representation used to help solve math problems.

Front

How do you find the missing number in a subtraction problem?

Back

You subtract the known number from the total to find the missing number.