5,23+6,47):78=11,7:78=0,15
(6,51-4,16):0,47=2,35:0,47=235:47=5
7,28:(4,65-3,74)=7,28:0,91=728:91=8
9,5:(3,54+1,46)=9,5:5=1,9
(6,25+0,18)*100=6,43*100=643
(9,07-3,91)*0,25=5,16*0,25=5,16*1:4=1,29
7,74:5,16*10=77,4:5,16=7740:516=15
0,34*(27,17:4,18)=0,34*(2717:418)=0,34*6,5=2,21