9.99x10 ^-2 + 1.11 * 10^-2 i dont have the same scientific calculator as the one from school. Would like to verify my math is correct

Question

Mathematics

Roderick

6 September, 05:50

9.99x10 ^-2 + 1.11 * 10^-2 i dont have the same scientific calculator as the one from school. Would like to verify my math is correct

+2

Answers (1)

Know the Answer?

Holden Castro · Answer 1

The answer should not depend on which machine or which pencil you use to

find it. If you work a problem two different ways and get two different answers,

then at least one of them is wrong, and there's a pretty good chance that both

of them are.

(9.99 of anything) + (1.11 of the same thing) = 11.1 of them

9.99 (x 10^-2) + 1.11 (x 10^-2) = 11.1 (x 10^-2).

Can we do any more with that?

10^-2 = 1 / 10^2 = 1 / 100.

11.1 x 10^-2 = 11.1 / 100 = 0.111