Estimating Sums and Differences of Mixed Numbers

The video tutorial teaches how to estimate sums and differences of mixed numbers by rounding to the nearest whole number. It provides examples using mixed numbers and benchmark fractions to demonstrate estimation techniques. The tutorial also covers adding mixed numbers by keeping denominators the same and rounding fractions to simplify calculations.

What is the first step in estimating the sums and differences of mixed numbers?

• Subtracting the fractions directly

• Adding the fractions directly

• Rounding to the nearest whole number

• Finding the common denominator

Tags

CCSS.7.NS.A.1C

If Alex has 5 cups of strawberries, how many cups does he need for both recipes after rounding?

• 6 cups

• 7 cups

• 5 cups

• 8 cups

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CCSS.5.NBT.A.4

What is the benchmark fraction closest to 5/8?

• 1/3

• 1/4

• 1/2

• 2/3

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CCSS.4.NF.A.2

Which benchmark fraction is closest to 3/16?

• 1/4

• 1/3

• 1/2

• 2/3

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CCSS.4.NF.A.2

What is the common denominator for the fractions 5/8 and 3/16?

• 8

• 16

• 4

• 2

What is 2 and 4/10 rounded to the nearest whole number?

• 5

• 4

• 3

• 2

Tags

CCSS.5.NBT.A.4

What is 3 and 5/8 rounded to the nearest whole number?

• 6

• 3

• 4

• 5

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CCSS.5.NBT.A.4

What is the sum of 2 and 3 when estimating mixed numbers?

• 6

• 7

• 5

• 4

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CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 1/2 and 1/2?

• 1/2

• 2

• 1

• 1 and 1/2

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the final estimated sum of 2 and 4/10 plus 3 and 5/8?

• 5

• 8

• 6

• 7

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CCSS.5.NF.A.1

CCSS.5.NF.A.2