Understanding One-Step Equations: Addition and Subtraction

This video tutorial explains how to solve one-step equations using inverse operations, focusing on addition and subtraction. It demonstrates solving equations with examples, using zero pairs to isolate variables. The tutorial emphasizes understanding inverse operations and correctly identifying negative and positive values to avoid mistakes.

What is the main objective when solving one-step equations?

• To add more variables

• To eliminate all numbers

• To find the value of the variable

• To make the equation more complex

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CCSS.HSA.REI.A.1

What is the inverse operation of addition?

• Addition

• Subtraction

• Multiplication

• Division

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CCSS.6.EE.B.7

In the example X + 3 = -7, what is the first step to isolate X using counters?

• Remove 3 counters from the left side

• Add 3 negative counters to both sides

• Add 3 positive counters to both sides

• Add 7 counters to the right side

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CCSS.6.EE.B.7

How do you solve X + 3 = -7 numerically?

• Subtract 3 from both sides

• Add 3 to both sides

• Divide both sides by 3

• Multiply both sides by 3

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CCSS.HSA.APR.A.1

In the subtraction example, what does the negative sign represent?

• A subtraction operation

• An addition operation

• A negative number

• A positive number

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CCSS.6.EE.B.7

What is the first step in solving Y - 4 = -10 using counters?

• Add 4 positive counters to both sides

• Add 4 negative counters to both sides

• Remove 4 counters from the right side

• Add 10 counters to the left side

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CCSS.6.EE.B.7

How do you solve Y - 4 = -10 numerically?

• Divide both sides by 4

• Subtract 4 from both sides

• Multiply both sides by 4

• Add 4 to both sides

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CCSS.6.EE.B.7

What is the result of adding 4 to both sides of the equation Y - 4 = -10?

• Y = -6

• Y = -14

• Y = 14

• Y = 6

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CCSS.8.EE.C.7B

What is the purpose of using zero pairs in solving equations?

• To eliminate variables

• To balance the equation

• To complicate the equation

• To simplify the equation

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CCSS.7.NS.A.1B

What happens when you add a number and its inverse?

• The result is zero

• The result is negative

• The result is the number itself

• The result is double the number

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CCSS.7.NS.A.1B