Adding and Subtracting Integers with Color Counters

The video tutorial from Mumu Math and Science explains how to add and subtract integers using counters. It begins with an introduction to integer operations, followed by a demonstration of using counters to visualize addition and subtraction. The tutorial introduces the two mark method for simplifying subtraction, providing examples to illustrate the process. The video concludes by encouraging viewers to practice the techniques and subscribe for more educational content.

What does a green circle represent in the counters method?

• Negative integer

• Zero

• Positive integer

• None of the above

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What results from combining a positive and a negative counter?

• A zero pair

• A negative counter

• No change

• A positive counter

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In the example, what is the result of 3 plus negative 4?

• Negative 1

• Positive 1

• Zero

• Positive 3

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What is the main purpose of using counters in integer operations?

• To make it more complex

• To visualize the operations

• To increase calculation speed

• None of the above

What is the outcome of four plus negative two?

• Positive 2

• Zero

• Negative 4

• Negative 2

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CCSS.7.NS.A.1

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What does the first mark in the two-mark rule change?

• Positive to negative

• Subtraction to addition

• Addition to subtraction

• Negative to positive

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What does the second mark in the two-mark rule change?

• Positive to negative

• None of the above

• Negative to positive

• Subtraction to addition

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CCSS.7.NS.A.1

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After applying the two-mark rule, what is the result of negative four minus two?

• Negative six

• Positive two

• Positive six

• Negative two

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CCSS.7.NS.A.1

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What is the result of negative two minus negative three after applying the two-mark rule?

• Negative one

• Positive one

• Negative five

• Positive five

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What is the final result when you add two negative counters and three positive counters?

• Zero

• One negative

• One positive

• Three positive

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