Question

7.89x10^-6+2.35x10^-8

Answer 1

$7.89 \times {10}^{ - 6} + 2.35 \times {10}^{ - 8} = 7.9135 \times {10}^{ - 6}$

Answer 2

$7.89 \times 10^{-6} + 2.35 \times 10^{-8} =$

To add numbers in scientific notation, you need the exponents of 10 to be the same. We will convert the -8 to -6.

$=7.89 \times 10^{-6} + 2.35 \times 10^{-2} \times 10^{-6}$

$=7.89 \times 10^{-6} + 2.35 \times 0.01 \times 10^{-6}$

$=7.89 \times 10^{-6} + 0.0235 \times 10^{-6}$

$=7.9135 \times 10^{-6}$