直接写出得数．
642÷6= 0.9×99+0.9= 1.25×80= 2.5÷0.01=
÷
= 2﹣
﹣
= 3﹣
﹣
=（÷
）×30=
直接写得数．
22×30= 3+4.7= 3.5+0.7=
50×20= 1﹣0 6= 1﹣
=
÷
= 100×0=
直接写出得数．
20+30= 12×3= 3.5﹣0.2= 33÷1.1 99×6=
0.65+2.35= 0.1×0.03= 651﹣105= 2﹣
=
+
=
1÷
=
×26=÷
=
﹣
= 12÷
×0=
2+
=
×
=
+
+
=
×
×5=（0.27+0.9）÷0.9=
直接写出得数．
376﹣156= 1.8+3.2= 15×60= 2.8÷10= 10﹣2.7=
1﹣
=
÷3=
×
= 3.5×0.2= 0.1×0.2=
直接写得数．
84+414= 8.4﹣3.9= 0÷0.001=
1.25×8= 6×
=
÷0.5=
3﹣
﹣
=（﹣
）×12=