4th grade- Addition

Front

What is the sum of 56,821 and 21,645?

Back

The sum is 78,466.

Front

How do you add two multi-digit numbers?

Back

Align the numbers by place value, starting from the rightmost digit, and add each column, carrying over if necessary.

Front

What is the sum of 43,871 and 32,649?

Back

The sum is 76,520.

Front

What is the process of carrying in addition?

Back

Carrying occurs when the sum of a column exceeds 9, requiring you to carry over to the next left column.

Front

What is the sum of 128,411 and 123,483?

Back

The sum is 251,894.

Front

What is the importance of place value in addition?

Back

Place value ensures that digits are added correctly according to their position (units, tens, hundreds, etc.).

Front

What is the sum of 155,457 and 15,654?

Back

The sum is 171,111.

Front

How can you check your addition for accuracy?

Back

You can check your addition by using the inverse operation, subtraction, to see if the original numbers can be retrieved.

Front

What is the sum of 54,898 and 63,543?

Back

The sum is 118,441.

Front

What strategies can help with adding large numbers?

Back

Break the numbers into smaller parts, use rounding, or estimate before calculating the exact sum.