Question

What answer do we get when we correctly evaluate this expression? `14.3−2×5^2÷5`

Answer 1

This is a question about order of operations. See the full explanation below, but the solution is `4.3`.

Explanation:

There are a number of ways to remember the order of operations in mathematics. One of them is 'BIMDAS', which stands for:

brackets (parentheses)
indices (powers)
multiplication
division
addition
subtraction

There are no brackets in this expression, so the first thing we do is the index:

`14.3-2xx5^2÷5=14.3-2xx25÷5`

Next we do multiplication:

`=14.3-50÷5`

Then division:

`14.3-10`

There is no addition, so we move on to subtraction, and find that our answer is `4.3`.