# Unit 20 Section 1 : Arithmetic Revision

This unit revises the work on addition, subtraction, multiplication and division of whole numbers and decimals, so that later sections can continue with work on fractions.

Start by looking through the example questions below. After each set of examples, you will find questions for you to try.
Do the questions without a calculator, then click on the button marked to see whether you are correct.

## Example 1 : Addition & Subtraction

Practice Questions
 What is 31 + 5.4 + 2.46? What is 5.67 - 3.2?

## Example 2 : Multiplication

Practice Question
 What is 23 × 4.3?

## Example 3 : Division

Practice Question
 What is 8.19 ÷ 7?

## Exercises

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 to see the answer.

Do not use a calculator for any of these questions.

Question 1
Work out the answers to these questions:
 (a) 182 + 57 (b) 32 + 168 (c) 1807 + 94 (d) 3.2 + 4.7 (e) 18.2 + 1.9 (f) 3.71 + 4.2 (g) 0.26 + 1.2 (h) 11.4 + 6.21 (i) 0.09 + 0.123

Question 2
Work out the answers to these questions:
 (a) 192 - 71 (b) 486 - 234 (c) 620 - 108 (d) 0.9 - 0.2 (e) 1.8 - 0.3 (f) 2.42 - 1.23 (g) 0.8 - 0.11 (h) 8.9 - 1.12 (i) 3.7 - 2.15

Question 3
Work out the answers to these questions:
 (a) 18 × 3 (b) 42 × 5 (c) 63 × 7 (d) 12 × 15 (e) 26 × 1.4 (f) 3.9 × 23 (g) 0.7 × 5 (h) 1.8 × 2.9 (i) 3.5 × 2.6

Question 4
Work out the answers to these questions:
 (a) 468 ÷ 2 (b) 578 ÷ 2 (c) 145 ÷ 5 (d) 345 ÷ 5 (e) 78 ÷ 3 (f) 981 ÷ 3 (g) 6.84 ÷ 4 (h) 14.7 ÷ 7 (i) 7.92 ÷ 6

Question 5
There were 52 people on a bus and 17 got off.
How many people were still on the bus?
people

Question 6
Floppy disks cost 34p each.
How much would 6 floppy disks cost?
£

Question 7
It costs £5.20 for one adult to go into a theme park.
How much would it cost in total for 24 adults to go into the theme park?
£

Question 8
Tickets for a show cost £3 each. To cover the cost of putting on the show, £378 is needed.
How many tickets must be sold to cover the cost of the show?
tickets

Question 9
An 8 m length of rope is cut into 5 pieces of equal length.
How long is each of the 5 pieces?
metres

Question 10
A PE department has £30 to spend on footballs which cost £4 each.
(a) How many footballs can they buy?
footballs
(b) How much money will they have left?
£

You have now completed Unit 20 Section 1
 Your overall score for this section is Correct Answers You answered questions correctly out of the questions in this section. Incorrect Answers There were questions where you used the Tell Me button. There were questions with wrong answers. There were questions you didn't attempt.
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