两位数乘两位数不进位笔算每排23盆共12排平均每行32个喷头共30行每排43盆共21排231223盆12排23122310230232462304627610个232个23276231220个[ Tag ]
两位数乘两位数,不进位,笔算,每排23盆,共12排,平均每行32个喷头,共30行,每排43盆,共21排,2312,23盆,12排,2312,2310,230,232,46,230,46,276,10个23,2个23,276,2312,20个