SOLUTION: obtain an estimate for each computation by rounding the numbers so that the resulting arithmetic can easily be performed by hand or in your head. Then use a calculator to perform t

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: obtain an estimate for each computation by rounding the numbers so that the resulting arithmetic can easily be performed by hand or in your head. Then use a calculator to perform t      Log On


   

Question 187510: obtain an estimate for each computation by rounding the numbers so that the resulting arithmetic can easily be performed by hand or in your head. Then use a calculator to perform the computation. How reasonable is your estimate when compared to the actual answer?
0.67 X 211
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
0.67 X 211
estimate: .7*200=140
actual: .67*211=141.37
140/141.37=.99 or within 99% of the actual answer.