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 in one step 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 in one step by subtracting a number from both sides to find the unknown value.

Front

How do you represent an unknown amount in an equation?

Back

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

Front

If Trevor had $29 and now has $41, how do you write the equation?

Back

The equation is 29 + m = 41, where m is the amount Trevor received.

Front

If Kevin had $42 and now has $95, how do you write the equation?

Back

The equation is x + 42 = 95, where x is the amount Kevin earned.

Front

If Lisa finished a race in 58 seconds, which was 4 seconds faster than her best time, how do you write the equation?

Back

The equation is t - 4 = 58, where t is Lisa's best practice time.

Front

If there are 32 students after 4 new students joined, how do you write the equation?

Back

The equation is n + 4 = 32, where n is the number of students before the new students joined.

Front

If Jack took 6 pencils from a box and there are 18 left, how do you write the equation?

Back

The equation is p - 6 = 18, where p is the total number of pencils in the box.

Front

What does the variable 'n' represent in the equation n + 4 = 32?

Back

In this equation, 'n' represents the number of students in the class before the 4 new students joined.

Front

What does the variable 'm' represent in the equation 29 + m = 41?

Back

In this equation, 'm' represents the amount of money Trevor received for cleaning the attic.