STAAR Review: Addition, Subtraction

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

If you have 300 minutes to practice and you practiced for 117 minutes, how do you find out how many minutes are left?

Back

Subtract 117 from 300: 300 - 117 = 183 minutes left.

Front

What is the goal of Erika's practice time?

Back

Erika's goal is to practice for a total of 300 minutes in a week.

Front

How do you calculate how many more minutes Erika needs to practice?

Back

Add the minutes she has already practiced and subtract from her goal: 300 - (117 + 58) = 125 minutes.

Front

What does it mean to have 'left to sell' in a ticket sales context?

Back

It refers to the number of tickets remaining after some have been sold.

Front

How do you find out how many tickets Rob has left after selling some?

Back

Subtract the number of tickets sold from the total tickets: 345 - 127 = 218 tickets left.

Front

What is the total number of pieces in two puzzles if one has 471 pieces and the other has 500 pieces?

Back

Add the pieces together: 471 + 500 = 971 pieces.

Front

What is the importance of combining numbers in puzzles?

Back

Combining numbers helps to find the total amount of pieces when working with multiple items.

Front

How do you find the difference in miles traveled between two trips?

Back

Subtract the miles of one trip from the total miles of the other trips.