一位后勤人员买了72本笔记本，可是由于他吸烟不小心，火星落在帐本上，把这笔帐的总数烧去两个数字.帐本是这样的：72本笔记本，共□□元(□为被烧掉的数字)，请把□处数字补上，并求笔记本的单价.
直接写得数+=﹣=×=×5= 2﹣= 3÷7=÷=÷4=
直接写出得数．+﹣×6×24× 5÷4.8 （+）×6 9×0+（+）÷ 12×11×× 1.5﹣+﹣．
直接写出得数． 1÷= 1﹣﹣=×==×12=（3+）×0=÷=+=
计算：﹣= 18×===×12=÷2=+=﹣=
===================== 2.5×16======== 1.5÷0.05== 1.5÷0.05==== 2.5×0.4============ 6.25+1.75===============
□元(□为被烧掉的数字)，请把□处数字补上，并求笔记本的单价.□元(□为被烧掉的数字)，请把□处数字补上，并求笔记本的单价.
+
=
﹣
=
×
=
×5=
= 3÷7=
÷
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÷4=
+
﹣
×6
×24
×
5
÷4.8
+
）×6 9
×0+
（
+
12×11×
×
1.5﹣
﹣
．
= 1﹣
﹣
×
=
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×12=（3
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÷
=
+
=
﹣
= 18×
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×12=
÷2=
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﹣
=
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=
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=
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= 2.5×16=
=
=
=
=
=
=
= 1.5÷0.05=
= 1.5÷0.05=
=
=
= 2.5×0.4=
=
=
=
=
=
=
=
=
=
=
= 6.25+1.75=
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