Question 1
Roberta bought an old calculator that keeps only one digit after the decimal point, discarding all later digits after every operation. For example, 7/5 gives the exact 1.4, but 7/4 gives 1.7 instead of 1.75, an error of 0.05. Computing (7/4)/2 gives first 1.7 and then 0.8, an error of 0.075. If she calculates ((10/3)×(10/3))×9, how far is the displayed result from the exact answer?