Exploring Adding and Subtracting Rational Expressions

This video tutorial focuses on comparing decimals and fractions, using examples to illustrate different strategies. It covers the use of place value charts and equivalent fractions to determine which numbers are greater, equal, or less. The lesson emphasizes the importance of comparing from left to right and understanding the significance of whole numbers in comparisons. Students are encouraged to use their preferred strategies and check their work.

What is a common misconception about comparing decimals?

• Decimals cannot be compared without conversion

• Shorter decimals are always smaller

• Decimals with more digits are less accurate

• Longer decimals are always larger

Tags

CCSS.5.NBT.A.3B

Which decimal is greater: 0.8 or 0.43?

• Cannot be determined

• Both are equal

• 0.43

• 0.8

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CCSS.4.NF.C.7

How can 0.8 be written as an equivalent fraction to compare with 0.43?

• 0.8/100

• 8/10

• 8/100

• 80/100

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CCSS.4.NF.C.6

When comparing 2.43 and 1.26, which is greater?

• 1.26

• Both are equal

• 2.43

• Information is insufficient

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CCSS.4.NF.C.7

What should you do if decimals have different denominators?

• Only compare the numerators

• Convert them to have the same denominator

• Ignore the denominators

• Compare them as they are

Tags

CCSS.5.NBT.A.3B

What is the result of comparing 0.7 and 0.70?

• 0.70 is greater

• They are equal

• Cannot be compared

• 0.7 is greater

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CCSS.4.NF.C.7

How do you convert 0.7 to an equivalent fraction with a denominator of 100?

• 7/10

• 7/100

• 70/100

• 0.07/100

Which is greater: 0.8 or 2.5?

• 0.8

• Cannot be determined

• 2.5

• Both are equal

Tags

CCSS.4.NF.C.7

What symbol is used to show that one value is less than another?

• <

• >

• !=

• =

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CCSS.3.NF.A.3D

In comparing decimals, why is it important to look at whole numbers first?

• Decimals cannot be compared without whole numbers

• They are easier to compare

• They determine the larger value

• Whole numbers are always greater

Tags

CCSS.5.NBT.A.3B