Writing One-Step Addition & Subtraction Equations

Front

What is a one-step addition equation?

Back

A one-step addition equation is an equation that can be solved by adding a number to both sides to find the unknown value.

Front

What is a one-step subtraction equation?

Back

A one-step subtraction equation is an equation that can be solved by subtracting a number from both sides to find the unknown value.

Front

How do you represent an unknown quantity in an equation?

Back

An unknown quantity is often represented by a variable, such as 'p', 'm', or 'n'.

Front

If Taylor has read 125 pages and the book has 262 pages, how do you find the pages left to read?

Back

You can use the equation p + 125 = 262 to find the pages left.

Front

What does the equation m - 12 = 5 represent in Ted's situation?

Back

It represents the amount of money Ted took to the aquarium after buying a poster.

Front

How can you find the number of students before 4 joined the class?

Back

You can use the equation n + 4 = 32 to find the number of students before the new students joined.

Front

What does the equation 29 + m = 41 represent in Trevor's situation?

Back

It represents the total amount of money Trevor has after receiving money for cleaning the attic.

Front

How do you find Lisa's best practice time if she finished a race in 58 seconds?

Back

You can use the equation t - 4 = 58 to find her best practice time.

Front

What is the first step in solving a one-step addition equation?

Back

The first step is to isolate the variable by subtracting the known number from both sides.

Front

What is the first step in solving a one-step subtraction equation?

Back

The first step is to isolate the variable by adding the known number to both sides.