Adding Integers: Key Concepts and Examples

This video tutorial by Mr. Richards explains how to add integers, focusing on two scenarios: adding integers with the same sign and adding integers with different signs. For integers with the same sign, their absolute values are added, and the result retains the sign. For integers with different signs, the absolute values are subtracted, and the result takes the sign of the integer with the larger absolute value. The tutorial includes practical examples and exercises to reinforce these concepts, concluding with a summary and encouragement to practice.

When adding two positive integers, what will be the sign of their sum?

• It depends on the integers

• Positive

• Negative

• Zero

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CCSS.7.NS.A.1C

What is the result of adding -7 and -4?

• 11

• 3

• -11

• -3

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CCSS.7.NS.A.1C

What is the result of adding -10 and -4?

• -14

• 14

• -6

• 6

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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 adding their absolute values and keeping the sign of the larger absolute value

• By subtracting their absolute values and keeping the sign of the smaller absolute value

• By subtracting their absolute values and keeping the sign of the larger absolute value

• By adding their absolute values

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CCSS.7.NS.A.1C

What is the result of adding -9 and 4?

• -13

• 13

• -5

• 5

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CCSS.7.NS.A.1C

What is the result of 6 + (-7)?

• 1

• -1

• -13

• 13

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CCSS.7.NS.A.1C

What is the result of adding -15 and 19?

• -34

• -4

• 34

• 4

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CCSS.7.NS.A.1C

What is the result of adding 10 and -12?

• -2

• 22

• 2

• -22

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CCSS.7.NS.A.1C

If the temperature is -3 degrees and it drops by 6 degrees, what is the new temperature?

• -9 degrees

• 3 degrees

• -3 degrees

• 9 degrees

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CCSS.7.NS.A.1C

If the temperature is -3 degrees, drops by 6 degrees, and then rises by 4 degrees, what is the final temperature?

• -5 degrees

• 9 degrees

• 5 degrees

• -9 degrees

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CCSS.7.NS.A.3