直接写出下列各题的得数．
3.5+2.75= 0.6×1.5=
=
=
15×（1﹣
）= 320÷8÷25= 6.3÷0.07=
=
直接写出得数．
9.9+0.9= 0.5×1.2= 24÷
= 0.36÷0.6=
2.625﹣1.25= 99÷
×0= 1÷
×
=
×
÷×
=
直接写得数．
2.73+3.27=
÷
=
×
= 11﹣
=
×
=
+=
直接写出结果：
2.2+3.57= 1.125×8= 35×
= 4﹣
=
1﹣
﹣
= 1
×8+8×=
+
= 2÷=
3.25×4= 1.9+0.1﹣1.9+0.1=
直接写出得数．
9.8+6.7=
+0.2= 15﹣
= 1.25×8= 1÷0.25=
= 0×2
= 7.2÷4= 25÷10%= 1﹣
=
×8×
×1.25 （2）
×1.25+
×2.2﹣
÷〔（
+
）×
〕 （4）7.8÷[32×（1﹣
）+3.6]．