Answer:

Explanation:
0.0000981=
↗️we will put the point after 6 numbers by making 2 triplets
so it will become=98.1×10__here we will write the the numbers after those we put the point with -(Minus) in power.
so we put the point after 6 numbers so the power will be 6 and (as i said we will write the power in -minus)so the asnwer will be 98.1×10^-6.