Bonjour
Résoudre:
a- 30x10^-3 / 10^-3
= 30 x 10^(-3+3)
= 30 x 10^0
= 30
b- 3x10^-2/6x10^-3
= (3/6) x 10^(-2+3)
= (3/(2 x 3)) x 10^1
= 1/2 x 10
= (2 x 5)/2
= 5
c- 2x3,2x10^-2
= 6,4 x 10^(-2)
= 0,064
d- 2x10^-1/5x10^-3
= (2/5) x 10^(-1+3)
= 2/5 x 10^2
= 0,4 x 10^2
= 4 x 10^(-1) x 10^2
= 4 x 10^(-1+2)
= 4 x 10^1
= 40
e- 12x10^-4/6x10^-3
= 12/6 x 10^(-4+3)
= (2 x 6)/6 x 10^(-1)
= 2 x 10^(-1)
= 0,2
f- 1,3x10^-3x3x10^-1
= 1,3 x 3 x 10^(-3-1)
= 3,9 x 10^(-4)
= 0,00039
