Question

Express the answers to the following calculations in scientific notation

(a) 0.0095 + (8.5 x 10^-3)
(b) 653 + (5.75 x 10^-8)
(c) 850,000 – (9.0 x 10^5)
(d) (3.6 x 10^-4) x (3.6 x 10^6)
Please show work, thank you

Answer 1

(a) 0.0095 + (8.5 x 10^-3) = 0.0095 + 0.0085 = 0.018 = 1.8 x 10^-2

(b) 653 + (5.75 x 10^-8) = 653 + 0.0000000575 = 653.0000000575 = 6.530000000575 x 10^2

(c) 850,000 – (9.0 x 10^5) = 850,000 - 900,000 = -50,000 = -5.0 x 10^4