Calculate the following numbers into scientific notation (include units)

7800nm + 95pm =

2500nm - 7pm =

(65x10^4m) x (4.5x10^-6s-1) =

(24x10^5m) / (2x10^-8s) =

7800nm + 95pm = (7800x 10^-9) + (95x10^-12) = 7.800095 x10^-6 = 7.800095mm

2500nm - 7pm = (2500x 10^-9) + (7x10^-12) = 2.50007x10^-6 = 2.50007mm

(65x10^4m) x (4.5x10^-6s-1) = clarify this question

(24x10^5m) / (2x10^-8s) = clarify this question