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Solve this: (99*99) + (99) / (99) - (1) * (0) + (20*20) / (400)  

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vinish | Student, Undergraduate | (Level 1) Valedictorian

Posted May 9, 2012 at 12:43 PM via web

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Solve this:

(99*99) + (99) / (99) - (1) * (0) + (20*20) / (400)

 

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bmxforlife | Student, Undergraduate | eNotes Newbie

Posted May 9, 2012 at 7:26 PM (Answer #1)

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the answer is 1

 

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vinish | Student, Undergraduate | (Level 1) Valedictorian

Posted May 9, 2012 at 1:19 PM (Answer #2)

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NOTE:

There is a catching point: (* 0) and we know that there the answer should be 0 so we must work out only the (20*20) / (400) which gives 400/400 whose answer is 1.

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Matthew Fonda | eNotes Employee

Posted May 9, 2012 at 10:28 PM (Answer #3)

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The important thing to remember here is the order of operations

PEMDAS: parentheses, exponentiation, multiplication, addition, subtraction.

(99*99) + (99) / (99) - (1) * (0) + (20*20) / (400)

Parentheses:

= 9801 + 99/99 - 1*0 + 400/400

Multiplication:

= 9801 + 99/99 - 0 + 400/400

Division:

= 9801 + 1 - 0 + 1

Addition:

= 9803 - 0

Subtraction:

= 9803


The above answers incorrectly apply the order of operations. The correct answer here is 9803

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