SALTA 5th grade

+

= _____ +

=

Robert added the fraction above and got an answer of 6/10. Use what you know about addition of fraction to explain why Robert’s answer is incorrect. Formulate an original problem that would have the answer 6/10.

= _____ + _____ = 1 whole

+

(DOK 3)

(DOK 1)

3 4

1 4

1 2

5.NF.2

A Road Construction Company is paving a road. During the first week the company paved

A recipe calls for

cup breadcrumbs, 2 cups tomato sauce, and

3 8

1 3

cup tomato paste. How many cups of ingredients are used altogether in the recipe?

15 miles. During the second week, the company paved 22 miles.

How much of the road was paved during the first two weeks?

The company will have to finish the 45-mile road during the third week of paving. How many miles will the company have to pave during the third week? Use what you know about fractions to explain why your answer is correct.

(DOK 3)

(DOK 1)