Simplifying Decimals with Order of Operations

Julie Harland, known as YourMathGal, presents a video tutorial on simplifying expressions with decimals using the order of operations. The video covers problems involving negative numbers and demonstrates how to handle operations like multiplication and division with decimals. Julie emphasizes the importance of understanding the order of operations and provides step-by-step solutions to various problems. The video concludes with a promotion of her website, where viewers can find more organized math videos.

What is the first step in simplifying an expression with a fraction bar?

• Simplify the denominator

• Multiply the numerator and denominator

• Add the numerator and denominator

• Simplify the numerator

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

When multiplying a negative number by a positive number, the result is:

• Zero

• Negative

• Positive

• Undefined

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of adding two negative numbers?

• A positive number

• A negative number

• An undefined number

• Zero

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CCSS.7.NS.A.1C

How do you handle subtraction of a negative number?

• Convert it to subtraction of a positive number

• Convert it to multiplication

• Convert it to addition of a positive number

• Leave it as is

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CCSS.7.NS.A.1C

What is the result of dividing a negative number by another negative number?

• Positive

• Zero

• Negative

• Undefined

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

When dividing by a decimal, what should you do to simplify the calculation?

• Multiply both numerator and denominator by 10

• Divide both numerator and denominator by 10

• Add 10 to both numerator and denominator

• Subtract 10 from both numerator and denominator

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CCSS.5.NBT.B.7

What is the result of multiplying a negative number by a positive number?

• Undefined

• Zero

• Negative

• Positive

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

How do you simplify the division of a number by 200?

• Multiply by 20 after moving the decimal point one place to the right

• Divide by 20 after moving the decimal point one place to the left

• Multiply by 2 after moving the decimal point two places to the right

• Divide by 2 after moving the decimal point two places to the left

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CCSS.5.NBT.A.2

What is the final result of dividing -12.2 by 200?

• -0.061

• 0.061

• -0.61

• 0.61

Tags

CCSS.7.NS.A.2B

What is the benefit of converting a division problem to have a smaller whole number in the denominator?

• It makes the division easier

• It has no effect

• It makes the division harder

• It changes the result