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Published byMilton Batterson Modified about 1 year ago

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An Easy One… If we are given a problem such as… y + 8 = 11 we can easily figure out that the y must be equal to 3 because 3 + 8 = 11

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But What If… we are given a problem such as… g + 216 = 543 What would you do?

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Let’s go back to… Y + 8 = 11

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Addition Problems subtract If we are looking at an addition problem then we need to subtract the same value from each side of the equation. For example… p + 54 = 124.

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Subtraction Problems add If we are looking at a subtraction problem then we need to add the same value to each side of the equation. For example… w – 87 = 624

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Let’s Try Some Examples! h – 6 = 12 Don’t forget to make sure your answer is valid!

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Let’s Try Some Examples! j + 21 = 49 Don’t forget to make sure your answer is valid!

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Let’s Try Some Examples! 32 + d = 56 Don’t forget to make sure your answer is valid!

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Let’s Try Some Examples! b – 24 = 8 Don’t forget to make sure your answer is valid!

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So Now What? We have now “undone” addition and subtraction problems by using the inverse (opposite) operation. But what would happen if we had… 5q = 35

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Multiplication Problems divide If we are looking at a multiplication problem then we need to divide by the same value on each side of the equation.

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Let’s go back to… 5q = 35

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Let’s Try An Example! 8k = 96 Don’t forget to make sure your answer is valid!

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Let’s Try Another Example! 25v = 300 Don’t forget to make sure your answer is valid!

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Division Problems multiply If we are looking at a division problem then we need to multiply by the same value on each side of the equation. For example… d ÷ 6 = 6

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Let’s Try An Example! Don’t forget to make sure your answer is valid!

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Let’s Try Another Example! Don’t forget to make sure your answer is valid!

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Let’s Try Another Example! 7c = 112 Don’t forget to make sure your answer is valid!

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Let’s Try Another Example! Don’t forget to make sure your answer is valid! 52 + q = 98

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Let’s Try Another Example! Don’t forget to make sure your answer is valid! u – 21.9 = 78.02

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