2300÷25÷23=2300÷23÷25=100÷25=4
原式=2300÷23÷25 =100÷25 =4
2300÷25=2300*4÷(25*4)=9200÷100=92
原式=2300-(4*25)=2300-100=2200
2300÷25 =2300÷(25*4)÷4 =230000÷4 =57500
2300÷25 =23x100÷25=23x4=92
2300÷ 25 =23X(100÷ 25) =23X4 =92
2300÷92=2300÷(23*4)=2300÷23÷4=100÷4=25
①:2300/25 =2300/(100/4) =2300/100*4 =92②:34*52+34*68 =34*(52+68) =34*120 =34*100+34*20 =3400+680 =4080
2300-25-25-25-25=2275-25-25-25=2250-25-25=2225-25=2200