5=35,10=36,15=37,20=38,25=39,30=100,35=?
5=35,10=36,15=37,20=38,25=39,30=100,35=?
5=35 10=36 15=37 20=38 25=36 30=100 35=?是5吧
33+34+35+36+37+38+39=x=
21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40=
40*39-38*37+36*35-34*33+.+4*3-2*1=?
脑筋急转弯 1=5 ,2=10,3=15,4=20,5=?,6=30,7=35,8=40,9=45
计算:33×34+34×35+35×36+36×37+37×38=______.
5+10+15+20+25+30+35+40……+500=?
1=10,2=15,3=20,4=25,5=30,6=35,7=40,8=45,9=50,10等于多少?
()÷20=35/()=5/3=15:30=():60
15*15=1*2*100+25=225 25*25=2*3*100+25=625 35*35=3*4*100+35=1
算一算.36+12= 24+31= 51+23= 35+23= 34+26= 22+39= 56+26= 35+25=