计算下面各题，能简便的就简便．
5.5×17.3+6.7×5.5 1.5×105 9.07﹣22.78÷3.4
4×3.09×0.25 0.26×2.5+0.74×2.5+2.5 18.09﹣7.5×（0.14+1.06）
直接写出得数
4.35+19.9= 18×0.5= 12÷
=
8×25%= 3﹣3÷4= 6÷0.1=
4210÷703≈ 99÷81=（
﹣0.625）×0.84=
3.8×5.5+4.5×3.8=
口算．
=
=
= 2.25+
=
= 2.5×0.1= 7.5÷0.5=
=
20.1+9.09=
×
=
﹣
= 1÷0.1﹣1×0.1=
（
+
）×63=0.5÷
= 0.4÷40%= 0.42﹣0.32=
+62.5%= 78×9.9+7.8= 7×
÷7×=
+
=
3.2万+1.8万= 4×2.7×0.25= 5﹣0.25+0.75= 0.42﹣0.32=
直接写出得数
1÷
= 0.4+4.73=
÷
=+
=
×
=
+0.8=
×
÷×=（
+
）×120=
口算：
÷62.5%=
÷8= 1.8÷
= 0.375+
﹣0.01=
×
÷×=
0.25×4÷
=
×
÷×= 19÷
= 0.125×
×8= 6.4×﹙1
﹣1.25﹚=