Вычислите наиболее удобным

4 * 19 * 25 = 4*25 *19 = 1900
8 * 15 * 25 = 15 * 8 *25 = 15 * 200 = 3000
250 * 35 * 8 = 8 * 250 * 8 = 8 * 2000 = 16000
50 * 75 * 2 = 75 * 50 * 2 = 75 * 100 = 75 00
16 * 47 *125 = 47 * 125 * 16 = 47 * 2000 = 94000
40 * 8 *25 * 125 = 40 * 25 * 125*8 = 1000 * 1000 = 1000000

4*25=100*19
8*125=1000*15
250*8=2000*35
50*2=100*75
16*125=2000*47
40*25=1000*(8*125)=1000*1000