Understanding Integer Subtraction and Addition

The video tutorial explains how to find the difference between two integers by converting subtraction into addition of a negative number. It demonstrates the process of determining the sign of the result based on the absolute values of the integers involved. The tutorial also includes a step-by-step guide for adding integers with different signs and visualizes the process on a number line, concluding that the result of 82 minus 93 is negative 11.

What is the first step in solving 82 minus 93?

• Add 93 to 82

• Rewrite it as 82 plus negative 93

• Subtract 82 from 93

• Multiply 82 by 93

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CCSS.7.NS.A.1C

Why is the sum of 82 and -93 negative?

• Because -93 outweighs 82

• Because 82 is less than 93

• Because 93 is a larger positive number

• Because both numbers are negative

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CCSS.6.NS.C.7C

What is the absolute value of -93?

• 82

• 0

• -93

• 93

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CCSS.7.NS.A.1C

How do you determine the sign of the sum when adding integers with different signs?

• By the sign of the larger absolute value

• By the sign of the last number

• By the sign of the smaller number

• By the sign of the first number

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CCSS.7.NS.A.1C

What is the second step in adding integers with different signs?

• Divide the absolute values

• Multiply the absolute values

• Subtract the smaller absolute value from the larger one

• Add the absolute values

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CCSS.6.NS.C.7C

What is the absolute value of 82?

• 82

• -82

• 0

• 93

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CCSS.7.NS.A.1C

What is the result of 82 plus negative 93?

• -11

• 0

• 93

• 11

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CCSS.7.NS.A.1C

What is the final result of 82 minus 93?

• -11

• 93

• 11

• 0

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CCSS.7.NS.A.1B

What does the number line help illustrate in this problem?

• The multiplication of 82 and 93

• The subtraction of two negative numbers

• The addition of two positive numbers

• The movement from 82 to -11

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CCSS.7.NS.A.1B

If you start at 82 on the number line and move left 93 units, where do you end up?

• At 93

• At 0

• At 11

• At -11

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CCSS.7.NS.A.1B