Question

Using the order of operations, what is the last calculation that should be done to evaluate
4(8 - 6)5² - 6 ÷ (–3)?

4(8 – 6)52 – 6 ÷ (?-3)
4(2)52 – 6 ÷ (-3)
4(2)(25) – 6 ÷ (-3)
200 – 6 ÷ (-3)
200 – (-2)

Answer 1

200-(-2) is actually 200-1(-2)

So thats multiplication

Then its 200+2

So addition is the last calculation to be done.

Answer 2

The BODMAS rule is an abbreviation that is used to recall the sequence to be used while solving mathematical expressions, and the following are the step by step calculations to the given points:

Given:

$\bold{4(8 - 6)5^2 - 6 \div (-3)?}$

To find:

Last calculation=?

Solution:

Using BODMAS rule:

$\to\bold{4(8 - 6)5^2 - 6 \div (-3)}\\\\\to\bold{4(2)5^2 - \frac{6}{(-3)}}\\\\\to\bold{4(2)25 - \frac{6}{(-3)}}\\\\\to\bold{4 \times 2 \times 25 - (-2)}\\\\\to\bold{200 - (-2)}\\\\\to\bold{200 +2}\\\\\to\bold{202}$

Therefore, the last calculating step is "$200 -(-2)$ ".

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