How do you evaluate #18+ 27\div 3^ { 2}#?

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Answer 1 · 2018-03-11T23:06:28

See a solution process below:

Using the PEDMAS order of operation first execute the Exponent operation:

#18 + 27 -: 3^color(red)(2) =>#

#18 + 27 -: 9#

Next, execute the Division operation:

#18 + color(red)(27) -: color(red)(9) => 18 + 3#

Then execute the Addition operation:

#18 + 3 = 21#