Primary School · Mathematics

Decimals (Multiplication): Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Decimals (Multiplication).

10 questions22 marksFree, no account

Question 1

1 mark

A small bottle of essential oil has a capacity of $ 0.015 $ L. If a retailer orders $ 250 $ bottles, what is the total volume of essential oil in litres?

Question 2

1 mark

A stack of 80 identical commemorative coins is formed. If each coin has a thickness of $0.175$ cm, what is the total height of the stack in centimetres?

Question 3

1 mark

Estimate the result of $4.8 \times 3.25$ by rounding each number to its nearest whole number. What is the difference between the actual product and the estimated product?

Question 4

1 mark

Calculate the product of $ 0.42 $ and $ 0.6 $.

Question 5

1 mark

A rectangular card is $12.5$ cm long and $8.4$ cm wide. What is the area of the card in square centimetres?

Question 6

2 marks

Calculate $0.58 \times 1000$.

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Question 7

4 marks

A car's fuel consumption is $0.08$ litres of petrol for every kilometre travelled. If the price of petrol is $\$16.50$ per litre, calculate the total cost of petrol for a journey of $25$ kilometres.

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Question 8

5 marks

A factory produces $500$ kg of flour. Each large container is filled with $0.01$ times the total production. If the flour in one large container is then divided into 4 equal sample packets, how many kilograms of flour are in each sample packet?

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Question 9

2 marks

A baker uses $0.35 \text{ kg}$ of flour to make one cake.

a) How many kilograms of flour are needed to make $8$ such cakes?

b) If the baker has a bag containing $5 \text{ kg}$ of flour, how many kilograms of flour will be left after making the $8$ cakes?

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Question 10

4 marks

A painter is commissioned to paint a rectangular feature wall. The wall measures $4.75$ m in length and $3.2$ m in height.

a) Calculate the area of the wall in square metres.

b) If one litre of specialized paint covers $6.5$ m$^2$, calculate the area that can be covered by $2.5$ litres of paint.

c) Based on your answers above, is $2.5$ litres of paint sufficient to cover the entire wall? Show your reasoning.

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