Standard Form by Boxed Rockets

Convert these numbers between standard form and normal numbers

1.26 \times 10^{4}

12600

8.4 \times 10^{4}

84000

1.44 \times 10^{- 2}

0.0144

728000

7.28 \times 10^{5}

8460

8.46 \times 10^{3}

0.000934

9.34 \times 10^{- 4}