12:()=1/()=35=()25=()%
12:()=1/()=35=()25=()%
25×12+35-28=
12:( )=0.8=( )/25=35分之( )=( )%
15^2-25=200(2=1*2);25^2-25=600(6=2*3);35^2-25=1200(12=3*4).用
15*15=1*2*100+25=225 25*25=2*3*100+25=625 35*35=3*4*100+35=1
1=5 2=15 3=1+25 4=2+35 5=?
18分之?分之25=5/6=( )/12=36分之?=35/( )
1=5 2=15 3=25 4=35 5=?
1=5,2=15,3=25,4=35,5=?
1=15,2=25,3=35,4=45,5=?
算一算.36+12= 24+31= 51+23= 35+23= 34+26= 22+39= 56+26= 35+25=
观察下列算式:15*15=1*2*100+25=225,25*25=2*3*100+25=625,35*35=3*4*1