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