The problem of 48÷2(9+3) becomes an issue again over the world. What's yours? 2 or 288?
First, parenthesis implicates 'multiply', so
48÷2(9+3) = 48÷2*(9+3) = 48÷2*12 = 24*12 = 288.
Second, by the distributive law,
48÷2(9+3) = 48÷(2*9+2*3) = 48÷(18+6) = 48÷24 = 2.
It's still arguable. How about calculators?
Google's Answer : 288
web2.0calc: 288
Some Scientific Calculators: Invalid Input - the parenthesis can't be followed by digit directly. My cellphone calculator display same error. Most online calculators show the error.
Calculator for Chemists: 0.22... OMG... (see the site)
MS Windows's Calculator: 12 ? I guess the calculator ignore the inputs before the parenthesis
Commercial Scientific Calculators: depending on model number. (...)
What's the answer!!!
First, parenthesis implicates 'multiply', so
48÷2(9+3) = 48÷2*(9+3) = 48÷2*12 = 24*12 = 288.
Second, by the distributive law,
48÷2(9+3) = 48÷(2*9+2*3) = 48÷(18+6) = 48÷24 = 2.
It's still arguable. How about calculators?
Google's Answer : 288
web2.0calc: 288
Some Scientific Calculators: Invalid Input - the parenthesis can't be followed by digit directly. My cellphone calculator display same error. Most online calculators show the error.
Calculator for Chemists: 0.22... OMG... (see the site)
MS Windows's Calculator: 12 ? I guess the calculator ignore the inputs before the parenthesis
Commercial Scientific Calculators: depending on model number. (...)
What's the answer!!!
48÷2(9+3) Problem. Answers from Calculators