Operations are brackets, addition, subtraction, multiplication, division and powers or exponents.
Importantly it makes a difference to the answer which operation you perform first.
Usually we just work from left to right through the equation, but the BODMAS rule overrides this.
Importantly it makes a difference to the answer which operation you perform first.
Usually we just work from left to right through the equation, but the BODMAS rule overrides this.
Calculate numbers with a mixture of brackets, addition, subtraction, multiplication, division and exponents in the wrong order, and you will get a wrong answer !
6 x (5 +3) = 6 x 8 = 48
or is this the answer?
6 x (5 +3) = 30 + 3 = 33
So, long ago people agreed to always follow certain rules when doing calculations, and they are:
It makes a difference to the calculation which parts you solve first.
| 6 × (5 + 3) | = | 6 × 8 | = | 48 | |||
| 6 × (5 + 3) | = | 30 + 3 | = | 33 | (wrong) |
First the items in the brackets are calculated, then divide and multiplication, then addition and subtraction.
