3 digit adding and subtracting

Front

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

Back

Addition

Front

If Elizabeth bakes 231 cookies and Fernando bakes 342 cookies, how do you find the total number of cookies?

Back

Add the two numbers: 231 + 342 = 573.

Front

What is the process of finding the difference between two numbers called?

Back

Subtraction

Front

If a family has traveled 230 miles of a 407-mile trip, how do you calculate the remaining distance?

Back

Subtract the distance traveled from the total distance: 407 - 230 = 177.

Front

What is the sum of 231 and 342?

Back

573

Front

What is the difference when you subtract 230 from 407?

Back

177

Front

In a word problem, what is the first step to take when solving for a total?

Back

Identify the quantities involved and determine if you need to add or subtract.

Front

What is a common strategy for solving application-based math problems?

Back

Read the problem carefully, identify key numbers and operations, and write an equation.

Front

How can you check your addition of two three-digit numbers?

Back

You can check your work by using the inverse operation, which is subtraction.

Front

What is the importance of understanding place value in three-digit addition and subtraction?

Back

Place value helps you align numbers correctly and perform operations accurately.