直接写出得数．
8÷0.1= 6÷7=
+
=
﹣
=
7.8﹣0.08= 0.6×0.5= 1﹣
= 18÷36=
直接写出得数．
1.53﹣0.5= 7.8+0.9= 1+
= 12÷0.4=
0.56+4.44= 2，9+3.7+2.1= 4×0.25= 1.25×5×8=
7.6×8+2.4×8=
直接写出得数．
0.42×0.5= 0.51÷1.7= 5.2÷0.13= 99×1.01=
13.5﹣2.8﹣7.2= 32.8+19= 1.06×0.4=
+
=
1﹣
= 25×0.32×125=
口算．
+
=
﹣
=
+=
﹣
=
+=
+
=
﹣
= 2﹣
= 1﹣﹣
=
直接写出得数．
﹣
=
+
=
+
=
+
=
1﹣
=
﹣
= 3+
=
﹣=
3﹣1
=
+=
+
=
+3
=
