Mastering Multi-Digit Addition

Front

What is multi-digit addition?

Back

Multi-digit addition is the process of adding numbers that have more than one digit, such as 345 + 678.

Front

What is the first step in multi-digit addition?

Back

The first step is to align the numbers by their place values (ones, tens, hundreds) and start adding from the rightmost column.

Front

What is carrying in addition?

Back

Carrying is when the sum of a column exceeds 9, and you move the extra value to the next left column.

Front

What is the sum of 345 and 678?

Back

1023

Front

When adding 456 and 789, where do you start adding the digits?

Back

In the ones place.

Front

What is the sum of 1,234 and 2,345?

Back

3,579

Front

In the addition problem 654 + 321, which digit in the sum will be affected by carrying?

Back

The tens digit.

Front

What is the sum of 123 and 456?

Back

579

Front

What is the place value of the digit 5 in the number 5,678?

Back

The place value of 5 is in the thousands.

Front

How do you check your work after adding multi-digit numbers?

Back

You can check your work by adding the numbers in a different order or by using subtraction to verify the sum.