Unit 5-10

The average of 14, 19, 23 and 31 is

• 21.7

• 21.75

• 21

• 21.57

The average of 14.5, 18.7, 19.4, 13.9 and 15.3 is

• 8.18

• 81

• 81.8

• 81.7

Add 1.53 and 5.69.

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Amada drank 3.2 liters of water. Lily drank 4.5 liters of water. How many liters did lily drink than Amada?

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10 tenths minus 2 tenths is

• 0.8

• 9.8

• 8

• 0.2

1 one is equal to

• 10 tenth

• 1 tenth

• 10 tenths

In the shopping basket, Amada bought 3 pencils, 1 ruler and 5 books. A pencil costs $0.3. A ruler costs $0.2 and it will cost $0.4 per book. How much did she spend in total?

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After using 130 cm of rope, Jake has 70 cm of rope. How many meters long at first?

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4.35 times 5.2 is

• 24.62

• 22.26

• 22.62

• 24.26

Sulli had $100. She bought 16 sets of stamps from a post office. Each set of stamps cost $ 4.2. How much money had he left?

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