Navigating the Challenges of Adding and Subtracting Negative Numbers

Mr. Buffington teaches how to add and subtract negative numbers without using number lines. He provides real-world examples like temperature, diving, and money to illustrate the concepts. The video covers rules for adding and subtracting negatives, including handling different signs and subtracting negatives. Practice problems are included to reinforce learning.

If the temperature is -5 degrees and it drops by 4 degrees, what is the new temperature?

• 9 degrees

• 1 degree

• -9 degrees

• -1 degrees

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CCSS.7.NS.A.1C

What is the result of -7 minus 5?

• -2

• -12

• 2

• 12

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CCSS.7.NS.A.1C

If you are 3 feet underwater and dive down another 5 feet, what is your new depth?

• -8 feet

• -2 feet

• 2 feet

• 8 feet

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CCSS.7.NS.A.1C

Calculate the result of -6 plus -22.

• -16

• -28

• 28

• 16

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CCSS.7.NS.A.1C

What is the result of 12 minus 5?

• -7

• -17

• 7

• 17

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CCSS.7.NS.A.1C

If the temperature is -3 degrees and it rises by 20 degrees, what is the new temperature?

• -17 degrees

• 23 degrees

• 17 degrees

• -23 degrees

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CCSS.7.NS.A.1C

What is the result of 6 minus 8?

• 14

• -14

• 2

• -2

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CCSS.7.NS.A.1C

What is the rule when adding or subtracting numbers with different signs?

• Find the difference

• Multiply the numbers

• Divide the numbers

• Find the sum

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CCSS.7.NS.A.1C

What is the result of 12 minus -4?

• 8

• -8

• -16

• 16

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CCSS.7.NS.A.1C

What is the result of -6 minus -13?

• -19

• 19

• 7

• -7

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CCSS.7.NS.A.1C