Mastering Integer Addition: Positive and Negative

This video tutorial by Mark Kara Demos on MathGuide.com explains how to add integers, focusing on positive and negative numbers. It is divided into three sections: adding integers with the same sign, adding opposite integers, and adding integers with different signs. The tutorial uses examples to illustrate each concept, emphasizing the importance of understanding these operations for algebra. The video also highlights properties like the commutative property and provides practical examples to help viewers grasp the concepts.

Why is understanding positive and negative numbers crucial for algebra?

• Because they are only used in calculus.

• Because they are not used in algebra.

• Because they are fundamental in algebraic operations.

• Because they are used in geometry.

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CCSS.6.NS.C.5

What is the result of adding two positive numbers?

• A positive number

• An imaginary number

• Zero

• A negative number

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CCSS.7.NS.A.1C

If you add -3 and -2, what is the result?

• -5

• 1

• -1

• 5

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CCSS.7.NS.A.1C

What happens when you add a positive number and its exact negative?

• You get a positive number

• You get a negative number

• You get an imaginary number

• You get zero

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CCSS.7.NS.A.1B

What is the sum of 12 and -12?

• 24

• 0

• 12

• -24

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CCSS.7.NS.A.1B

If you owe $9 and then earn $9, what is your balance?

• $9

• $-18

• $0

• $18

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CCSS.7.NS.A.1A

What is the result of adding -14 and 10?

• -4

• 4

• -24

• 24

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CCSS.7.NS.A.1C

How can you simplify the addition of -7 and 15?

• By breaking 15 into 7 and 8

• By breaking -7 into -5 and -2

• By breaking 15 into 10 and 5

• By breaking -7 into -3 and -4

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CCSS.7.NS.A.1C

What is the sum of -31 and 21?

• -10

• 10

• -52

• 52

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CCSS.7.NS.A.1C

If you add -18 and 100, what is the result?

• 82

• -82

• 118

• -118

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CCSS.7.NS.A.1C