899 milliards = × 10

90 centaines = × 10

432 × 10^-2 = × 10

0,000 434 = × 10

48,2 × 10⁴ = × 10

4 160 = × 10

56,3 = × 10

14,6 × 10⁵ = × 10

0,002 49 = × 10

306 centièmes = × 10