Three digit addition/subtraction

Front

What is three-digit addition?

Back

Three-digit addition is the process of adding numbers that have three digits, such as 123 + 456.

Front

What is three-digit subtraction?

Back

Three-digit subtraction is the process of subtracting one three-digit number from another, like 789 - 456.

Front

How do you add 651 and 219?

Back

651 + 219 = 870.

Front

How do you find the total number of students in multiple classes?

Back

Add the number of students in each class together, like 43 + 57 + 32 + 15 = 147.

Front

What is the result of adding 90 and 382?

Back

90 + 382 = 472.

Front

What is 804 minus 188?

Back

804 - 188 = 616.

Front

How do you solve 589 - 325?

Back

589 - 325 = 264.

Front

What is the first step in three-digit addition?

Back

Line up the numbers by their place values: hundreds, tens, and ones.

Front

What do you do if the sum in a column is more than 9?

Back

You carry over the extra value to the next column on the left.

Front

What is a place value?

Back

Place value is the value of a digit based on its position in a number, such as hundreds, tens, or ones.