计算下列各题，能简便的要用简便方法计算．
425÷1.25÷8 4.23÷3.6+7.4 0.75×99
6.3+3.7×2.5 4.28×11﹣4.28 12.5×3.2．
计算下列各题，能简便的要用简便方法计算．
425÷1.25÷8 4.23÷3.6+7.4 0.75×99
6.3+3.7×2.5 4.28×11﹣4.28 12.5×3.2．
×
= 1÷
=
×
= 77：63=
÷9=
×
=
÷8= 4：2.5=
×
=
×
= 0×
=
÷
=
=
=
=
×3=
×16=
×
=（
+
）×4=
×
+
×
=
+
=
÷3= 4÷
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
×1= 52﹣42= 0.75﹣0.5=
=
÷
= 125×0.08=
÷
= 0.15×6= 12÷0.3= 0÷
=
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