Question

Work out the value 3x10^-5 x 40,000,000 give you answer in standard form​

Answer 1

★ Solution:

➣ ${\sf{3\:x\:10^{-5}\:x\:4\:x\:10^7$

➣ ${\sf{(3\:x\:4)\:x\:(10^{-5+(-7)})$

➣ ${\sf{12\:x\:10^2$

➣ ${\sf{1.2\:x\:10^3$