Math Topic 2 Test

Subtract mentally.

8.01 − 6.51

• 1.49

• 1.5

• 1.52

• 1.6

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2-1 mental math

Nicolas bought 3.9 pounds of oranges, 1.1 pounds of strawberries, and 4.5 pounds of apples. How many pounds of fruit did Nicolas buy?

• 9.7 pounds

• 9.5 pounds

• 8.9 pounds

• 8.5 pounds

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2-1 mental math

To add 20.4 + 3.75 + 4.25, Crystal first added 3.75 and 4.25. Which property did Crystal use to add mentally?

• Associative Property of Addition

• Commutative Property of Addition

• Distributive Property

• Identity Property of Addition

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2-1 mental math

The number 5.524 has been graphed on the number line below. What is this number rounded to the nearest tenth?

• 5

• 5.4

• 5.5

• 6

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2-2 Rounding Decimals

Aiden needs 3.7 pounds of plaster for a project. He can choose from the 2 packages shown. Round the weight of each package of plaster to the nearest tenth.

• 3.8 and 2.4

• 3.9 and 2.4

• 3.9 and 2.5

• 3.8 and 2.5

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2-2 Rounding Decimals

Which one of these decimals rounded to the nearest tenth is 0.9?

• 0.09

• 0.92

• 0.95

• 0.99

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2-2 Rounding Decimals

ESTIMATE $12.28 + $0.82 by rounding to the nearest whole number.

• $12

• $13

• $18

• $20

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2-3 Estimating sums and differences

Which difference is about 10?

• 55.7 − 55.6

• 43.2 − 38.4

• 60.9 − 48.7

• 52.5 − 26.8

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2-3 Estimating sums and differences

Subtract. Use the grids to help. 1.92 − 0.17

• 0.75

• 1.17

• 1.75

• 2.09

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2-4 Modeling +&- of decimals

Jerome biked 1.2 miles. Then he ran 0.75 mile. How far did Jerome go?

• 0.05 mile

• 1.85 miles

• 1.95 miles

• 2 miles

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2-4 Modeling +&- of decimals