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Calculation laws and calculation
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Multiplication and division goes before addition and subtractionExample: 5 + 7 ∙ 5
First, the product from 7 ∙ 5 will be calculated and then
the answer is added to 5, so: 5 + 7 ∙ 5 = 40. By no means should you
calculate the answer the other way around. 5 + 7 ∙ 5 Powers before multiplication and divisionExample: 5 ∙ 24 = 5 ∙ 16 = 80. It is not 104. That would be 10 000!
Parenthesis in front of everything elseExample: (7 – 2)3 ∙ 23 = 53 ∙ 23 = 125 ∙ 8 = 1 000
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12 ∙ 5 = 60.
That it wrong!