下面各题，怎样简便就怎样算．
（0.86+0.86+0.86+0.86）×25 0.2+（3.4+
）×
7.6×
÷[1.9﹣1.9×（1.9﹣1.9）] 74
×19+19×25.4．
相关试题
下面各题，怎样简便就怎样算．
（0.86+0.86+0.86+0.86）×25 0.2+（3.4+）×
7.6×÷[1.9﹣1.9×（1.9﹣1.9）] 74×19+19×25.4．
=
×
= 6÷
= 1÷
÷1= 2
=
= 1
÷1+
÷3= 1
÷0.8=5.4×
=
×0.7+0.3=
×1.2= 1÷2
= 1.8÷
=
×
÷
=
+
）×12= 3﹣
÷0.75= 24
÷8= 4÷
﹣
÷4=
×4﹦
×
﹦ 12÷
﹦
÷
﹦
÷
﹦
÷6﹦ 9÷
﹦
×
﹦ 12×
﹦
×
= 1÷
=
×
= 77：63=
÷9=
×
=
÷8= 4：2.5=
×
=
×
= 0×
=
÷
=
=
=
=
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