Estimate Sums and Differences (Fractions)

Front

What is an estimate?

Back

An estimate is a rough calculation or judgment of the value, number, quantity, or extent of something.

Front

How do you estimate the sum of two fractions?

Back

To estimate the sum of two fractions, round each fraction to the nearest whole number and then add those whole numbers.

Front

How do you estimate the difference between two fractions?

Back

To estimate the difference, round each fraction to the nearest whole number and then subtract the smaller whole number from the larger one.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 3 1/2.

Tags

CCSS.3.NF.A.3C

Front

What is a proper fraction?

Back

A proper fraction is a fraction where the numerator is less than the denominator, like 2/3.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, like 5/4.

Tags

CCSS.3.NF.A.3C

Front

Estimate 5 2/9 - 3 2/3

Back

1

Front

Estimate 7 2/3 - 4 1/4

Back

4

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Estimate 7 1/3 + 4 2/3

Back

12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

If Patrick has played guitar for 3 5/6 years, how do you estimate how many more years Gen has played guitar than Patrick if Gen has played for 6 1/12 years?

Back

Gen has played approximately 2 more years than Patrick.