Решити премеры по действиям 30 (2,23+6,47)/78= (6,51-4,16)/0,47= 7,28/(4,65-3,74)= 9,5/(3,54+1,46)= (6,25+0,18)*100= (9,07-3,91)*0,25= 7,74/5,16*10= 0,34*(27,17/4,18)=

(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