Understanding Integer Operations

This video tutorial covers the basic operations with integers, including addition, subtraction, multiplication, and division. It explains how to handle integers with the same and different signs, using rules like 'same sign sum' and 'different signs difference'. The tutorial also introduces the 'keep-change-flip' method for subtraction and provides a mnemonic for multiplication and division involving positive and negative integers.

What is the result of adding two positive integers?

• Zero

• It depends on the integers

• A negative integer

• A positive integer

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CCSS.7.NS.A.1C

If you add -8 and -4, what is the result?

• 4

• 12

• -12

• -4

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CCSS.7.NS.A.1C

When adding integers with different signs, what should you do?

• Add the numbers

• Multiply the numbers

• Find the difference

• Divide the numbers

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CCSS.7.NS.A.1C

What is the result of 30 + (-7)?

• 37

• 23

• 24

• -24

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CCSS.7.NS.A.2B

What does the 'keep-change-flip' method involve?

• Keeping the first number, changing the operation, flipping the second number

• Keeping the first number, changing the second number, flipping the operation

• Changing both numbers and flipping the operation

• Flipping both numbers and keeping the operation

Tags

CCSS.7.NS.A.1C

What is the result of 2 - 7 using keep-change-flip?

• -5

• -9

• 9

• 5

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CCSS.7.NS.A.1C

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

• Always use a positive sign

• Use the sign of the larger number

• Always use a negative sign

• Use the sign of the smaller number

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CCSS.7.NS.A.1C

What is the result of -6 + (-5)?

• -1

• 1

• 11

• -11

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CCSS.7.NS.A.2B

CCSS.7.NS.A.2A

What is the result of multiplying two negative integers?

• It depends on the integers

• Zero

• A positive integer

• A negative integer

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CCSS.7.NS.A.2B

CCSS.7.NS.A.2A

What is the result of dividing a positive integer by a negative integer?

• A positive integer

• A negative integer

• Zero

• It depends on the integers

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CCSS.7.NS.A.2B

CCSS.7.NS.A.2A