bonjour
56 200 = 5.62 x 10 ⁴
0.00 345 9 = 3.459 x 10 ⁻³
0.012 345 = 1.2 345 x 10 ⁻²
53 000 0000 = 5.3 x 10 ⁸
45.1 x 10 ² = 4.51 x 10 ⁴
0.00828 x 10 ⁴ = 8.28 x 10 ¹
0.000 004 79 = 4.79 x 10 ⁻⁶
2 783 000 = 2.783 x 10 ⁶
0.999 = 9.99 x 10 ⁻¹
0.122 = 1.22 x 10 ⁻¹
784.14 x 10 ⁵ = 7.8414 x 10 ⁷
0.0 000 000 990 = 9.9 x 10 ⁻⁸
