Question

how to add 3.8×10^-8 +4.2×10^-6

Answer 1

3.8×10^-8 +4.2×10^-6
=3.8 +4.2 × 10^-8-6
=3.8+4.2 × 10^-14
=8.0 ×10^-14 is the correct answer


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Answer 2

u can use log book and learn from any maths teacher. solving this big numbers is a bit tedious and accuracy may also vary so its better to use a log book.....