口算
1
﹣
+0.8= 7.4﹣（1
+
）= 1
﹣
﹣
= 1.25×7×8= 12
÷3=
0.25×0.4= 4.4﹣3= 4÷0.25= 3÷10%= 11
×6=
+1÷2
= 
×（1﹣
）= 2×0.75= 
÷
= 5÷25÷0.4=
0.8×
×5= ÷×
= （0.18+
）÷9= 
×
÷
×
= ×÷
=
相关试题
脱式计算，能简算的要简算
9.81×0.1+0.5×98.1+0.049×9812
÷[（2
﹣1.2）×
+0.05]
100﹣32×0.125×0.25 [1﹣（
﹣
）]×
．
+
+
）×12②18.93﹣6
﹣3
﹣0.75×62﹣75%④7
÷
+1
×2
．
直接写出得数
0.9+99×0.9
×2÷×236×25%1.25×3.2×8+0.75
（ 
+
）×
4.1×10.1 390×2%×
10÷10%
+0.6+30%
+4.8﹣
+
）×13×29
×
+
×
﹣
=（
）×30=
×25=
=
÷6=
=12.5×32×2.5=5﹣
=2.8×25+12×2.5=
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