notation scientifique
A = 0.00028 x 10⁻³ = 2.8 x 10⁻⁴ x 10⁻³ = 2.8 x 10⁻⁷
B = 1789 x 10⁻² = 1.789 x 10³ x 10⁻² = 1.789 x 10¹
C = 10235 x 10⁹ = 1.0235 x 10⁴ x 10⁹ = 1.0235 x 10¹³
D = 0.57 x 10⁴ = 5.7 x 10⁻¹ x 10⁴ = 5.7 x 10³
E = 756 x 10⁴ = 7.56 x 10² x 10⁴ = 7.56 x 10⁶
F = 54.3 x 10⁻³ =5.45 x 10¹ x 10⁻³ = 5.45 x 10⁻²