Question

Describe how to add or subtract two numbers written in scientific notation with the same power of 10.

Answer 1

Step1. If number is written with same power of 10. then to add two number we can apply distributive property .

For Example-

(a $\times$ 10^m) + (b $\times$ 10^m) = (a + b ) $\times$ 10^m

Step2. If number is written with same power of 10. then to subtract two number we can apply distributive property .

For Example-

(a $\times$ 10^m) - (b $\times$ 10^m) = (a - b ) $\times$ 10^m