脱式计算2﹣÷﹣ ÷+× （）÷+．
计算.﹣50% 60%× 1﹣ ÷5+ ﹣ ﹣ ÷90%﹣12.5% 48%× 25%÷
直接写得数．+= ×3.6= 2.4﹣1= 12÷3=23﹣2.03﹣2.003= （64+）×= 3.6÷0.36= ×4÷×4=1﹣﹣= （﹣）×30=
直接写得数30﹣19.02= 1﹣0.94+0.06= 3.125+1= 1×5÷×=1÷0.1﹣1×0.1= 12×3.14﹣6.28= ++= ×0.25+3=
直接写得数4.3+3.57= 6.3÷0.9= 2.4×0.5= 1÷0.2÷0.5=5﹣﹣= 10÷10%= 1÷0.2÷0.5= 7×÷7×=
直接写得数24÷= ﹣= 10+2.52= （﹣0.5）×=×= （+）×12= ×÷×= 0.32×200=
÷
﹣
÷
+
×
（
）÷
+
．
﹣50% 60%×
1﹣
÷5
+
﹣
÷90%
﹣12.5% 48%×
25%÷
+
= 
×3.6= 2.4﹣1
= 12
÷3=
）×
= 3.6÷0.36= 
×4÷
×4=
﹣
﹣
= （
﹣
）×30=
= 1×5÷
×=
++
= 
×0.25+3== 1×5÷×=++= ×0.25+3=
﹣
= 10÷10%= 1÷0.2÷0.5= 7×
÷7×
= 
﹣
= 10+2.52= （
=
×
= （
+
）×12= 
÷
×
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