Respuesta :

0.6+0.02+0.004 = 0.624
or 
(6 * 0.1) + (0.01 * 2) + (0.001 * 4) =0.624

* = times          both are correct ! hope this helps

0.6+0.02+0.004=0.624
(0.1*6)+(0.01*2)+(0.001*4)=0.624
* = times