Understanding Number Line Operations

The video tutorial explains basic arithmetic operations using a number line. It covers the addition of positive numbers, the addition of negative numbers, and the concept of subtracting a negative number. The tutorial uses examples like one plus six, three plus negative seven, and three minus negative four to illustrate these concepts, emphasizing movement on the number line to the right for addition and to the left for subtraction.

What happens on the number line when you add six to one?

• You move to zero.

• You stay at one.

• You move six to the right.

• You move six to the left.

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CCSS.1.NBT.C.4

CCSS.2.MD.B.6

If you start at one and move six to the left, what operation are you performing?

• Subtracting one

• Adding one

• Subtracting six

• Adding six

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CCSS.7.NS.A.1B

How do you interpret the expression 'three plus negative seven' on a number line?

• Start at three and move seven to the right.

• Start at three and move seven to the left.

• Start at seven and move three to the left.

• Start at seven and move three to the right.

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CCSS.7.NS.A.1C

What is the result of adding negative seven to three?

• Zero

• Negative four

• Four

• Ten

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CCSS.7.NS.A.1C

When adding a negative number, which direction do you move on the number line?

• Move upwards

• To the left

• Stay in place

• To the right

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CCSS.7.NS.A.1B

What is the equivalent expression for 'three minus negative four'?

• Three plus negative four

• Three minus four

• Three minus three

• Three plus four

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CCSS.7.NS.A.1B

How do you interpret 'three minus negative four' on a number line?

• Start at four and move three to the left.

• Start at three and move four to the right.

• Start at four and move three to the right.

• Start at three and move four to the left.

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CCSS.7.NS.A.1C

What happens when you subtract a negative number?

• You add zero.

• You subtract zero.

• You add a positive number.

• You subtract a positive number.

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CCSS.7.NS.A.1C

What is the result of 'three minus negative four'?

• Negative one

• Seven

• Zero

• One

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CCSS.1.OA.A.1

If you start at three and move four to the right, what operation are you performing?

• Adding four

• Adding three

• Subtracting four

• Subtracting three

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CCSS.1.OA.A.1