“小马虎”在计算一道没有余数的除法题时，把被除数十位上的数字看成了个位上的数字，个位上的数字看成了十位上的数字，除以53的结果，商8余18．原来正确的商是几？
直接写得数． 1÷=÷2= 4×20%=×4= （+）×12= 1÷75%= 1%÷10%= 42%﹣0.42=
直接写得数． 12×= 6÷=÷= 1÷×=×18=×0×=×=×26=
直接写出得数．×60= 12÷= 3.14×42=（）2=×=+=÷=÷=
直接写得数．×4=+=+=÷= 25÷=﹣=÷5=×= 2÷=﹣=×12= 2﹣﹣=
口算========
=
÷2= 4×20%=
×4=
+
）×12= 1÷75%= 1%÷10%= 42%﹣0.42=
= 6÷
=
÷
= 1÷
×
=
×18=
×0×
=
×
=
×26=
×60= 12÷
= 3.14×42=（
）2=
×
=
+
=
÷
÷
=
×4=
+
=
+
=
÷
=
=
﹣
=
×
=
=
﹣
=
=
=
=
=
=
=
=
=
=
粤公网安备 44130202000953号