Estimating Fractions: Adding, Subtracting & Multiplying

A recipe calls for 3/4 cup of sugar. If you want to make half of the recipe, how much sugar will you need? Estimate your answer.

• 1/2 cup of sugar

• 1/4 cup of sugar

• 3/8 cup of sugar

• 2/3 cup of sugar

Lily has 2/3 of a yard of ribbon. She uses 1/4 of a yard for a project. How much ribbon does she have left? Estimate your answer.

• 5/12 of a yard

• 1/2 of a yard

• 3/4 of a yard

• 2/3 of a yard

A pizza is cut into 8 equal slices. If you eat 3/8 of the pizza, how much pizza is left? Estimate your answer.

• 4/8 of the pizza is left.

• 6/8 of the pizza is left.

• 5/8 of the pizza is left.

• 2/8 of the pizza is left.

Tom has 5/6 of a gallon of paint. He uses 1/3 of a gallon to paint a fence. How much paint does he have left? Estimate your answer.

• 1/2 gallon

• 1/4 gallon

• 2/3 gallon

• 3/4 gallon

A bag of flour weighs 2 1/2 pounds. If you use 1 1/5 pounds for a cake, how much flour is left? Estimate your answer.

• 0.5 pounds

• 1.3 pounds

• 2 pounds

• 1 pound

Sarah bought 3/4 of a pound of strawberries. If she uses 1/2 of a pound for a smoothie, how much does she have left? Estimate your answer.

• 1/8 pound

• 1/4 pound

• 1/2 pound

• 3/4 pound

A garden has 1/2 of its area planted with tomatoes and 1/4 with cucumbers. What fraction of the garden is not planted? Estimate your answer.

• 1/2

• 1/4

• 3/4

• 1/3

If a car travels 3/5 of a mile in 1/4 of an hour, how far does it travel in 1 hour? Estimate your answer.

• 2.4 miles

• 1.5 miles

• 0.6 miles

• 3 miles

A recipe requires 2/3 cup of milk. If you want to triple the recipe, how much milk will you need? Estimate your answer.

• 1 cup

• 3 cups

• 1/2 cup

• 2 cups

A baker has 1 1/2 pounds of dough. If he uses 2/3 of a pound to make bread, how much dough is left? Estimate your answer.

• 2/3 pounds

• 5/6 pounds

• 3/4 pounds

• 1 pound