甲数为2乘以3乘以5乘以A,乙数是2乘以3乘以7乘以A,两数的最大公因数是三十,求两数,

甲数为2乘以3乘以5乘以A,乙数是2乘以3乘以7乘以A,两数的最大公因数是三十,求两数, 已知甲数=2乘以3乘以5乘以a,乙2乘以3乘以7乘以a,甲乙两数最大公因数为30,甲乙两数以及a各为多少 1乘以2乘以3+2乘以3乘以4+3乘以4乘以5+...+7乘以8乘以9 已知甲数=2乘以3乘以3乘以5乘以7,乙数=2乘以2乘以5乘以5乘以7,求甲数和乙数的最大公因数 =3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99! 1乘以2乘以3乘以4乘以5乘以.100积有几个零 5乘以5等于0乘以1乘以100+25；15乘以15等于1乘以2乘以100+25；25乘以25等于2乘以3乘以100=25;猜测地N个算式应表示为: 1乘以2乘以3乘以4乘以5乘以...乘以2010的末尾有（ ）个连续的零. 一乘以二乘以三分之一加2乘以3乘以4分之一+3乘以4乘以5分之1+……+48乘以49乘以50分之1. 1/1乘以2乘以3+1/2乘以3乘以4+1/3乘以4乘以5…+1/20乘以21乘以22的最简便的计...1/1乘以2乘以3+1/2乘以3乘以4+1/3乘以4乘以5…+1/20乘以21乘以22的最简便的计算方法 一个六位数乘以1乘以2乘以3乘以4乘以5等于这六位数的倒过来的数 1乘以2+2乘以3+3乘以4+4乘以5……+97乘以98+98乘以99+99乘以100等于多少 0除以3乘以4乘以5乘以6乘以7乘以8乘以9乘以10除以3除以2等于 计算:3乘以A的平方-A乘以(3乘以A-5乘以B)-B乘以(2A-B)的平方等于?..救命拉... 1平方乘以2平方乘以3平方乘以4平方乘以5平方乘以6平方等于 24乘以10加上24乘以3乘以2加上10乘以3乘以2等于 100乘以(-2)乘以(-8)乘以0.01 A=B乘以57 A乘以2等于B乘以（ ）A乘以5等于B乘以（ ）A乘以（）等于B乘以12 A乘以（）等于B乘以29请那位大侠告之!