Solve the exponent first.

As the exponents of 10 are same so we can just subtract the numbers in decimals.

How many places would the digits move with respect to the decimal point move to give its usual form & in which direction?

Scientific notation is same as standard form.

We assume the decimal point to be at the right most end, then how many places would the digits move to the right of theÂ decimal pointÂ to give a standard form?

We can express the exponential form in terms ofÂ place values.

Write 84 crores in number & then move the digits to the right of theÂ decimal point.

Express the place values in exponential form.

As the exponents of 10 are same so we can just add the numbers in decimals.

Scientific notation is same as standard form.