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5 + 2 x 10 = 25 NOT 70.

In mathemetics multiplication/division take precedence over addition/subtraction.

So in such as situation as above you multiply the '2' & '10' together first .

2 x 10 = 20

Then add the five

20 + 5 = 25

Maths calculators are programmed in this way.

However, if the calculation was written as

(5 + 2) x 10 (Note the brackets) , then the mathematical rule is to do INSIDE the brackets first.

Hence

5 + 2 = 7

Then multiply

7 x 10 = 70

NB Note the difference in answers.

NNB It is critical on how to do the calculation, depending on the given symbols.

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lenpollock

Lvl 16
8mo ago

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