3 Digit Addition

Front

What is the process of adding three-digit numbers called?

Back

Three-digit addition.

Front

What is the sum of 450 and 461?

Back

911.

Front

What is the sum of 391 and 454?

Back

845.

Front

What is the sum of 424 and 450?

Back

874.

Front

What is the sum of 461 and 391?

Back

852.

Front

What is the first step in solving a three-digit addition problem?

Back

Align the numbers by their place values (hundreds, tens, and units).

Front

How do you carry over in addition?

Back

If the sum of a column exceeds 9, carry over the tens to the next column.

Front

What is the importance of place value in addition?

Back

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

Front

What is the sum of 450, 461, and 391?

Back

1302.

Front

What is the sum of 454 and 424?

Back

878.