“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？
×÷÷÷×÷÷．
直接写出得数．×=××=÷3= 12×=+﹣+= 20÷= 18÷÷=×= 0×=×÷×=
口算 56×= 2﹣=+= 6×= 0.25×4= 57×=÷= 1÷= 21÷=÷= 1÷= 0÷=
计算下面各题．×21×÷5×÷÷÷÷24×÷8．
计算．×9=×0= 0÷=÷= 12×=×=÷=÷=
×
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÷
÷
×
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×
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×
×
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÷3= 12×
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+
﹣
+
=
= 18÷
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= 0×
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×
÷
= 2﹣
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+
= 6×
= 0.25×4= 57×
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= 1÷
= 21÷
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= 1÷
= 0÷
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×21×
÷5×
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÷24
×
÷8．
×9=
×0= 0÷
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×
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