Review A - Decimals Problem Sums

The length of a ribbon is 2.8 m.

What is the length of 30 such ribbons?

Ans: ____ m

The thickness of a dictionary is 4.3 cm.

What is the total height of a stack of 50 such dictionaries?

Give your answer in metres.

Ans: ____m

The total mass of 10 identical tins of milk powder is 16 kg.

What is the mass of 4 such tins?

Ans: ____ kg

The cost of 100 g of grapes is $0.55 at a supermarket.

What is the cost of 3 kg of grapes?

Ans: $ ____

Ah Meng's mass is 43.4 kg. His mass is twice Ah Hoon's mass.

What is their total mass?

Round your answer to the nearest kilogram.

Ans; ____ kg

The total capacity of 6 identical jugs and 20 identical mugs is 15 ℓ.

The capacity of 5 such mugs is the same as the capacity of a jug

What is the total capacity of a jug and a mug?

Ans: ____ ℓ

A container is packed with pencil boxes.

The mass of the pencil boxes is 4 times the mass of the empty container.

The difference between the mass of the pencil boxes and the empty container is 7.8 kg.

What is the mass of the empty container?

Ans: ____ kg

A jug contained 3.5 ℓ of water.

Some of the water was poured into 13 cups.

Each cup contained 250 ml of water.

How many litres of water were left in the jug?

Ans: ____ ℓ

Bala cut 24 pieces of wire, each 30.5 cm long, from a coil of wire.

1.6 m of the wire was left.

What was the original length of the coil of wire?

Give your answer in metres.

Ans: ____m

The price of a sack of rice was $11.45.

Sora got $12.60 change after paying for 12 such sacks.

How much money did Sora pay the cashier?

Ans: $ ____