# Q. Perform each of the following calculations. Round off your answers to three digits.

4) Solve the following problems

Q. Perform each of the following calculations. Round off your answers to three digits.

a. (3.26×104) (1.54×106)

b. (8.39×107) (4.53×109)

c)$$8.94 × 10^6\over 4.35 × 10^4$$

d)$$(9.28 × 10^9) (9.9 × 10^{-7})\over (511) (2.98× 10^{-6})$$