Question

1) Rewrite using standard notation : 291.2 x 10^-2 . 2) rewrite using standard notation: 54.1 x 10^-3 . 3) in this expression 4.22 x 10^-3 , which number is the exponent ?

Answer 1

1. 2.912 x 10^1
2. 5.41 X 10^-2
3. -3

Hope this helps :)