Writing One-Step Addition & Subtraction Equations

Front

What is a one-step addition equation?

Back

A one-step addition equation is an equation that requires only one addition operation to find the unknown value. For example, x + 5 = 10.

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What is a one-step subtraction equation?

Back

A one-step subtraction equation is an equation that requires only one subtraction operation to find the unknown value. For example, x - 3 = 7.

Front

How do you solve the equation x + 42 = 95?

Back

To solve x + 42 = 95, subtract 42 from both sides: x = 95 - 42, so x = 53.

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How do you solve the equation h + 4 = 9?

Back

To solve h + 4 = 9, subtract 4 from both sides: h = 9 - 4, so h = 5.

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How do you solve the equation t + 9 = 25?

Back

To solve t + 9 = 25, subtract 9 from both sides: t = 25 - 9, so t = 16.

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How do you solve the equation m - 12 = 5?

Back

To solve m - 12 = 5, add 12 to both sides: m = 5 + 12, so m = 17.

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How do you solve the equation p - 6 = 18?

Back

To solve p - 6 = 18, add 6 to both sides: p = 18 + 6, so p = 24.

Front

What does the variable 'x' represent in an equation?

Back

The variable 'x' represents an unknown value that we are trying to find in an equation.

Front

What is the purpose of using equations in word problems?

Back

Equations help translate word problems into mathematical expressions that can be solved to find unknown values.

Front

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

Back

The first step is to isolate the variable by performing the opposite operation (addition or subtraction) on both sides of the equation.