Understanding Basic Arithmetic with Number Lines

This video tutorial covers basic arithmetic operations using a number line, including addition and subtraction of both positive and negative numbers. It also explains how to handle larger numbers without a number line, focusing on techniques like carrying and borrowing. The tutorial provides step-by-step examples and encourages viewers to practice these methods.

When adding two numbers on a number line, which direction should you move?

• Down

• Up

• Right

• Left

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CCSS.7.NS.A.1B

If you start at -7 on a number line and add 5, where do you end up?

• 12

• 2

• -2

• -12

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To subtract a number on a number line, which direction should you move?

• Left

• Right

• Up

• Down

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CCSS.7.NS.A.1B

What is the result of subtracting 3 from -6 on a number line?

• 9

• 3

• -9

• -3

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CCSS.7.NS.A.1C

What happens when you subtract a negative number from another negative number?

• The result is the same as adding the absolute values

• The result is always negative

• The result is always positive

• The result is zero

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CCSS.2.NBT.B.7

What is the sum of 56 and 33 using the method of lining up numbers?

• 79

• 89

• 69

• 99

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CCSS.2.NBT.B.5

When adding large numbers, what should you do if the sum of a column is greater than 9?

• Add 1 to the next column

• Carry over the extra digit

• Subtract 10 from the sum

• Ignore the extra digit

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the result of 76 minus 45 using the borrowing method?

• 31

• 51

• 21

• 41

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CCSS.7.NS.A.1C

If the top digit is smaller than the bottom digit in subtraction, what should you do?

• Add 10 to the top digit

• Borrow from the next column

• Subtract the bottom digit from 10

• Ignore the bottom digit

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CCSS.7.NS.A.1C

What is the result of 27 minus 45?

• 18

• -72

• -18

• 72

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CCSS.7.NS.A.1C