口算：
0.4×0.02= 3.2+6.8= 0.39÷1.3= 2.4×2.5=
1÷0.125= 1﹣0.25= 0.62÷0.1= 99×0.25=
1.2×0.4+0.4×1.3= 4×（1.5+0.25）=
相关试题
口算：
0.4×0.02= 3.2+6.8= 0.39÷1.3= 2.4×2.5=
1÷0.125= 1﹣0.25= 0.62÷0.1= 99×0.25=
1.2×0.4+0.4×1.3= 4×（1.5+0.25）=
=
=
+
= 1.2﹣
=
÷
= 2.5×4÷4=
+
÷
+
= 0÷（
﹣
）=
=
×2=
=
=
=
=
= 0.23=
×
= 6.75﹣（1.9+
）=（
+
）×72=
×31+31÷6=
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