The value of is

7

Write each of the following numbers in usual form:

(i) 2.06x10^-5

(ii) 5 x10^-7

(iii) 6.82 x 10^-6

(iv) 5.673x10^-4

(v) 1.8 x10^-2

(vi) 4.129 x10^-3

1

The value of is

3

The value of is

4

(2^-5 ÷ 2^-2) = ?