\(4.2 \times 10^ 6 + 2.25 \times 10 ^5 + 2.8 \times 10^ 6\)

\(4.2 \times 10 ^6 +\color{red}{?} \times 10 ^\color{red}{?}+ 2.8 \times 10^ 6\)

\(4.2 + \color{red}{?} + \color{red}{?}\)

\(\color{red}{?} \times 10^\color{red}{?}\)

\(8.5 \times 10^ 3 - 5.3 \times 10^ 3 - 1.0 \times 10^ 2\)

\(8.5 \times 10^ 3 - 5.3 \times 10^ 3 -\color{red}{?} \times 10 ^\color{red}{?}\)

\(\color{red}{?}-\color{red}{?}-\color{red}{?}\)

\(\color{red}{?}\times 10^\color{red}{?}\)

\(1.25 \times 10 ^2 + 0.50 \times 10 ^2 + 3.25 \times 10 ^2\)

\(6.2 \times 10^ 5 - 2.6 \times 10^ 4 - 1.9 \times 10^ 2\)

\(( 1.8 \times 10^ 9 ) ( 6.7 \times 10^{ 12 })\)

\(\large\frac{3.46 \times 10^{17}}{2 \times 10^ 9}\)

\(( 5 \times 10^{ 12} ) ( 3.38 \times 10^ 6 )\)

\(\large\frac{8.4 \times 10^{ 21}}{4.2 \times 10^{ 14}}\)

\(3.6 \times 10^ {11}\)

\(7.25 \times 10 ^{-5}\)

\(8 \times 10 ^{-1}\)

\(7.6E-4\)

\(1.2E16\)

\(9E1\)

How do you add, subtract, multiply, and divide numbers written in scientific notation?