Question 1
Roberta’s old calculator keeps only one digit after the decimal point, discarding later digits after EVERY operation. Thus 7/5 gives 1.4 exactly, but 7/4 gives 1.7 instead of 1.75, an error of 0.05. For (7/4)/2 it first gets 1.7, then 0.8 instead of 0.875, an error of 0.075. What is the error when it calculates ((10/3)*(10/3))*9?