被除数是123，商是15，余数是3，除数是多少？
直接写数对又快．97﹣28= ÷= ×= ×=2.5×4= += 8÷80%= ×÷×=
÷2= += 10÷= ×6=×= ÷= 9×= 15×（﹣）=
直接写得数= = = 15.7+3= == = 10+10%= 3﹣3÷5= 0.9×99+0.9=
1﹣65%= 1﹣1÷6= 0.32= 40×5%=+= 25%÷= 1﹣+= 0.125×0.125=
看谁算得快×= ×÷×= 0.35×99= ÷=79﹣0.79= += 10÷1%= 32×1.25%=
÷
= 
×
= 
×
=
+
= 8÷80%= 
=
÷2= 
+
= 10÷
= 
×6=
×
= 
÷
= 9×
= 15×（
﹣
）=
= 
= 
= 15.7+3= 
=
= 
= 10+10%= 3﹣3÷5= 0.9×99+0.9=
+
= 25%÷
+
= 0.125×0.125=
×
= 
×
÷
×
= 0.35×99= 
÷
=
+
= 10÷1%= 32×1.25%=
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