SSC MTS EXAM

Detailed explanation-1: -This time, you move the decimal point to the right, 4 spaces. N = 3.8 and x =-4. So your number in scientific notation becomes: 3.8x10-4, or 3.

Detailed explanation-2: -To write 0, 0045 in scientific notation, we will have to move the decimal point three point to right, which literally means multiplying by 1000=103 . Hence in scientific notation 0.0045=4.5×10−3 (note that as we have moved decimal three point to right we are multiplying by 10−3 .