×
÷0.25 14
10÷
×
3
7+
0.3
1.25+0.75 
÷
×
4÷16
×
×
﹣
×
6×
÷
8个
6.4吨
8吨的 8.8吨
比8吨多
6.4
比8吨多吨 1.6吨
比8吨少 14.4吨．
直接写出得数．
2005+620= 1﹣0.09= 0.45×101= 2÷0.02=
÷5.25=
+6.25=
×
=
÷
= 5﹣
= 1﹣
+
=
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=