Word Problems: Addition and Subtraction

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

How do you find the total number of items when given two groups?

Back

You add the number of items in each group together.

Front

If a concert hall has 4,000 seats and 2,750 are filled, how do you find the number of empty seats?

Back

Subtract the number of filled seats from the total number of seats: 4,000 - 2,750 = 1,250 empty seats.

Front

What is a word problem?

Back

A word problem is a mathematical problem that is presented in the form of a story or real-life scenario.

Front

How do you solve a word problem involving addition?

Back

Identify the numbers to be added, write an equation, and then calculate the sum.

Front

How do you solve a word problem involving subtraction?

Back

Identify the numbers to be subtracted, write an equation, and then calculate the difference.

Front

What is the combined weight of two objects?

Back

The combined weight is found by adding the weights of both objects together.

Front

If Sally travels 2,268 miles to visit her grandfather who lives 2,734 miles away, how do you find out how much further she has to travel?

Back

Subtract the distance traveled from the total distance: 2,734 - 2,268 = 466 miles.

Front

What is the total number of tiles if there are 7,578 stone tiles and 1,856 glass tiles?

Back

Add the number of stone tiles and glass tiles together: 7,578 + 1,856 = 9,434 tiles.