直接写出得数．
8.1÷0.03= 
+3= 
×
= 1.5×4=
7.45+8.55= 70﹣34= 0.36+0.4= 84÷7=
19+24= 0.4÷0.05= 
+
= 
﹣
=
134﹣18= 0×26= 0.25÷0.01= 1÷=
×
= 39+26= 
﹣
= 
÷
=
×20= 0.3÷
= 
×
= 0.25×0.6=
×
= 
﹣
= 2.5×0.4= 1÷10%=
4.8÷12%= 
÷10=
列竖式计算．
（1）48.35+156.78=
（2）0.083+18.572=
口算下面各题．
0.68﹣0.48= 2.7+4.3= 5.14+1.86= 2.5﹣1.4=
3.3﹣0.5= 1.2﹣0.7= 5.2﹣4= 0.6+0.9=
3.5+4.2= 6+0.5=
2.7﹣0.4= 1﹣0.3=
0.8+0.7= 4.5﹣3=
7.8﹣1.1= 3.4﹣1.4=
3米+0.5米= 0.7米+0.3米=
0.6元+1.5元= 1.2﹣0.3=
1.4+0.8= 6.2+3.8=
8.4+1.9= 6.8+3.4=
口算．
3.1+0.8= 1﹣0.5= 4.2+0.7= 4.6+2.3= 9.6﹣2.4=
5.5+0.4= 1.9﹣0.9= 7.3+0.6= 9.9﹣9=
竖式计算
12.42+0.48= 0.56+11.534= 44﹣22.13=
91﹣22.035= 52.6+21.237= 9.15﹣2.18=