Estimation, Addition, and Subtraction

Front

What is estimation in math?

Back

Estimation is a way to find an approximate value or answer, rather than an exact one. It helps to quickly assess the size or amount of something.

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 taking one number away from another to find the difference.

Front

How do you estimate the sum of two numbers?

Back

Round each number to the nearest ten or hundred, then add the rounded numbers together.

Front

What is the sum of 276 and 364?

Back

640

Front

What is the difference when you subtract 1772 from 2854?

Back

1082

Front

Estimate the sum of 578 and 720.

Back

1300

Front

Estimate the sum of 906 and 397.

Back

1300

Front

If a cupcake store made 276 cupcakes on Tuesday and 364 on Wednesday, how many did they make altogether?

Back

640

Front

If there are 564 ants in a colony and 386 more come back, how many ants are there in total?

Back

950