The process of division is just multiplication in reverse.
If you know your multiplication tables well, you should find it reasonably easy to do simple divisions in your head.
When there is more than one operation in a question, you need to remember the order in which operations are carried out. This can be summarised by BODMAS:
If you see two of the same operation you just do them in the order they appear (left to right).
(a) 3 + 4 × 5 = 3 + 20 = 23 | (Multiply before Add) |
(b) 10 ÷ ( 2 + 3 ) = 10 ÷ 5 = 2 | (Brackets before Division) |
(c) 20 ÷ 2 ÷ 2 = 10 ÷ 2 = 5 | (do operations left to right) |
Practice Questions
Work out the answer to each of these questions then click on the button marked
to see whether you are correct.
Question 1
Use mental arithmetic to answer these questions (do not use a calculator).
Question 2
Use BODMAS to work out whether these statements are TRUE or FALSE.
Question 3
Work out the answers to the following questions (without a calculator).
Question 4
A pupil works out 200 ÷ 4 by this method:
So 200 ÷ 4 = 50. This works because doing (÷2) twice is the same as doing (÷4).
Use similar methods to find the answers to these questions (not a calculator).