Mot phep chia co thuong bang 82.so du la47 so chia nho hon 4000.tim so chia. Giai. Goi so bi chia la a.so chia la b.ta co a=b ×82+47
So chia phai..................................so du.nen b be hon 47
Neu b bang 48 thi a =…………………………
Neu b be hon hoac bang 49 thi a................................................................
Vay so chia bang.....................................