3-Digit Addition and Subtraction Review

Front

What is 3-digit addition?

Back

3-digit addition is the process of adding numbers that have three digits, such as 263 + 312.

Front

What is 3-digit subtraction?

Back

3-digit subtraction is the process of subtracting numbers that have three digits, such as 112 - 78.

Front

How do you find the total when adding two numbers?

Back

To find the total, you add the two numbers together. For example, 263 + 312 = 575.

Front

What does it mean to 'collect' in math problems?

Back

'Collect' means to gather or accumulate items, like cans or baskets, which can then be added together.

Front

What is the sum of 604 and 207?

Back

The sum of 604 and 207 is 811.

Front

If you have 112 ducks and 78 fly away, how do you find out how many are left?

Back

You subtract the number of ducks that flew away from the total: 112 - 78 = 34.

Front

What is the process to solve a 3-digit addition problem?

Back

Align the numbers by place value (hundreds, tens, ones) and add each column starting from the right.

Front

What is the result of 509 + 372?

Back

The result of 509 + 372 is 881.

Front

What is a word problem in math?

Back

A word problem is a math question presented in a narrative form, requiring interpretation to solve.

Front

How do you check your answer in addition?

Back

You can check your answer by adding the numbers again or by using subtraction to see if you get the original numbers.