Having a glance at the given options one can find out that the two nearest values have a difference of 300. So round off the numbers to the nearest ten's values. 9228.789 » 9230; 5021.832 ~ 5020 and 1496.989 ~ 1500 Now the equation will become 9230 – 5020 + 1500 = ? ? = 5710 But the nearest value is 5700.