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.

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

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?

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

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?