621,6*10^3 = 6,216*10^2*10^3=6,216 * 10^5
217*10^-2 = 2.17 * 10^2* 10^-2= 2.17
21,8*10^-2 = 2.18 * 10 * 10^-2=2.18* 10^-1
0,24*10^3= 2.4 *10^-1*10^3= 2.4*10^2
621,6*10^3 = 6,216*10^2*10^3=6,216 * 10^5
217*10^-2 = 2.17 * 10^2* 10^-2= 2.17
21,8*10^-2 = 2.18 * 10 * 10^-2=2.18* 10^-1
0,24*10^3= 2.4 *10^-1*10^3= 2.4*10^2