Question

* Which of the following is smallest a) 4.2 x 10^7 b) 0.42 x 10^7 c) 42 x 10^7 d) 0.0042 x 10^7​

Answer 1

Answer:

4.2*10 ^7 = 42000000

0.42*10^7= 4200000

42*10^7= 420000000

0.0042*10^7= 42000

so 0.0042*10^7 is smallest