用简便方法计算：73+3.4+27+5.6 7.25﹣3.42﹣1.58 363×7+237×7 4300÷25÷4．
在如图中表示+．
直接写出得数．== 1﹣==== 1﹣==
直接写出得数.﹣= 0.12+= 8﹣8= 1+2.1﹣1.25= 2﹣= 1.2+= 1++= 3+0.25﹣3+0.25=
直接写出得数．========
直接写得数．+= 1﹣=﹣=+=﹣= 25÷26=+= 1﹣+=
+
．
=
= 1﹣
=
=
=
= 1﹣
=
=
﹣
= 0.12+
= 8
﹣8= 1
+2.1﹣1.25=
= 1.2+
= 1+
+
= 3
=
=
=
=
=
=
=
=
+
= 1﹣
﹣
=
+
=
﹣
= 25÷26=
+
= 1﹣
+
=
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