standard_description: Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.
problem_activity: Problem 1
Choose the best estimate for the volume of the paint in a paint can.
Problem 2
How much liquid is in each container? For any measurement that is not exact, make an estimate. Be sure to include units, milliliters or liters, in your answer.
a.
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b.
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c.
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aligns: no