Addition and Subtraction with Regrouping

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

What does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value from one column to the next when the sum exceeds 10.

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next column when the top number is smaller than the bottom number.

Front

Calculate the sum of 678 and 421.

Back

1099

Front

Find the sum of 456 and 389.

Back

845

Front

Find the difference between 789 and 432.

Back

357

Front

What is the result of subtracting 543 from 876?

Back

333

Front

What is the difference between 543 and 287?

Back

256

Front

What is a sum?

Back

A sum is the result of adding two or more numbers together.