Réponse:
1)
[tex]3.589 = \frac{3589}{ {10}^{3} } [/tex]
2)
[tex] \frac{1}{8} = 0.125 = \frac{125}{ {10}^{3} } [/tex]
3)
[tex]378.9 \times {10}^{3} = 378900 = \frac{378900}{ {10}^{0} } [/tex]
4)
[tex]9.91 \times {10}^{ - 9} = 991 \times {10}^{ - 11 } = \frac{991}{ {10}^{11} } [/tex]
5)
[tex]123.456 \times {10}^{ - 10} = 123456 \times {10 }^{ - 13} = \frac{123456}{ {10}^{13} } [/tex]
