9+8= 35﹣5= 5+7﹣3= 12﹣4+5=
16﹣9= 13﹣8= 11﹣6= 5+9=
13+3= 18﹣9= 20﹣8= 16﹣7=
16﹣9﹣6= 4+7+8= 17﹣9﹣5= 80+5﹣5=
5+9﹣7= 17﹣8﹣9=
9+8= 35﹣5= 5+7﹣3= 12﹣4+5=
16﹣9= 13﹣8= 11﹣6= 5+9=
13+3= 18﹣9= 20﹣8= 16﹣7=
16﹣9﹣6= 4+7+8= 17﹣9﹣5= 80+5﹣5=
5+9﹣7= 17﹣8﹣9=
= 24÷
=
=
=
=
﹣
=
=
=
﹣1.2=（0.1）3= 3÷1
=
×0.4=
﹣
=
×7=
+1
= 5×
÷5×
+
×
= 21
÷3=
×4= 6﹣
=
÷
=
×
×
=
÷
=
÷
=
÷
=
= 2.5
=
= 1
=
= 1
×
= 3÷1%=
=．
×0=
=
=
=
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