Unit 4 Section 2 : Revision of the four rules (decimals)
This section is intended to act as a revision of basic number operations (+, -, × and ÷) with decimals.
It assumes that you have covered these operations before.
The example question below shows the working using the "traditional" methods for each operation.
There are other methods for each operation which are equally acceptable. You should choose the one you find easiest.
(a) 3.8 + 10.42
(b) 18.2 - 0.36
(c) 8.2 × 3.7
(d) 1.56 ÷ 0.3
Work out the answer to each of these questions then click on the button marked
to see whether you are correct.
(a) What is 21.5 + 3.27?
(b) What is 3.25 - 2.71?
(c) What is 2.41 × 2.3?
(d) What is 1.64 ÷ 0.4?
Work out the answers to the questions below and fill in the boxes. Click on the
button to find out whether you have answered correctly. If you are right
then will appear and you should move on to the next
question. If appears then your answer is wrong. Click
on to clear your original answer and have another go.
If you can't work out the right answer then click on
You have now completed Unit 4 Section 2
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Produced by A.J. Reynolds February 2003