whats the easiest way to do this without a calculator? lets say 18% of $67
2007-06-07 13:10:22 · 10 answers · asked by Jinx 1 in Science & Mathematics ➔ Mathematics
This sounds like someone trying to calculate a tip in their head. The pencil-and-paper multiplication isn't difficult, and the above answerers have done that fine. I'll do a more mental-calculatable route.
18% is nearly 20%. 20% is easy. It's just double 10%, and 10% is just moving the decimal place over. So 20% of $67 is 2*$6.7 or $13.4. That gets us in the right ballpark.
To refine it to the exact value, we note that 18% is now 10% less than 20% (ie 0.9*.2 = 0.18). So subtract $13.4-$1.34 = $12.06
2007-06-07 14:07:10 · answer #1 · answered by Anthony H 2 · 0⤊ 0⤋
.18 times 67
2007-06-07 13:13:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
18%*$67=18/100 * (2/3*$100)
hundreds will cancel out and the result is $18*2/3=$12
2007-06-07 13:15:14 · answer #3 · answered by Alberd 4 · 0⤊ 0⤋
18% of anything is 18 one hundredths of the same . Hence, multiply the $67 by 18/100 that is multiply by 18 and divide by 100
2007-06-07 13:16:36 · answer #4 · answered by barbara596 2 · 0⤊ 0⤋
Multiply 67 by point .18 long hand
2007-06-07 13:13:48 · answer #5 · answered by Pengy 7 · 0⤊ 0⤋
divide $67 by 100 = $0.67 = 1%
Multiply by 18 = 0.67x18 = $12.06
2007-06-07 13:16:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
67*18=divide it by 100 and there is your anwser
2007-06-07 13:18:09 · answer #7 · answered by govtagent_2001 4 · 0⤊ 0⤋
18% of $67
=0.18*67
=$ 12.06
2007-06-07 13:15:44 · answer #8 · answered by alpha 7 · 0⤊ 0⤋
is/of = %/100 cross multiply.
x/67 = 18/100
100x=1206
x=$12.06
2007-06-07 13:23:16 · answer #9 · answered by psychoffspring 2 · 0⤊ 0⤋
just use a calculator
2007-06-07 13:14:13 · answer #10 · answered by Anonymous · 0⤊ 0⤋