35+41= 27+15= 80﹣27= （60﹣30）÷6=
26+54÷9= 37+25= 7×（21﹣15）= 92﹣70=
20÷5+10= 7×8= 900﹣500= 700+50=
110+280= 36+40÷5= 35+41= 7600﹣300=
2700﹣700= 42﹣2×6= 42÷6=
35+41= 27+15= 80﹣27= （60﹣30）÷6=
26+54÷9= 37+25= 7×（21﹣15）= 92﹣70=
20÷5+10= 7×8= 900﹣500= 700+50=
110+280= 36+40÷5= 35+41= 7600﹣300=
2700﹣700= 42﹣2×6= 42÷6=
×
=
+
=
×
=
=
=
×5=
÷2=
﹣
=
= 0÷
=
×
=
+20%=
=
×12×
= 63：27=
：
=
=
=
=
=
=
=
=
=
=
=
= ；
= ；
：0.75= ；
÷ =0.1；
= ； 32÷（1+60%）= ； 2﹣1
= ； ×40=
．
=
=
=
=
=
=
=
=
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