用递等式计算．
（1）8.7×63+63×1.3 （2）3.6÷[（1.2+0.4）×5]
（3）1.2+8.8×1.25 （4）1.2×8.8×1.25
（5）（2.5÷2+2÷2.5）×0.4 （6）（5.7×1.2+4.3×1.2）×2.5．
相关试题
用递等式计算．
（1）8.7×63+63×1.3 （2）3.6÷[（1.2+0.4）×5]
（3）1.2+8.8×1.25 （4）1.2×8.8×1.25
（5）（2.5÷2+2÷2.5）×0.4 （6）（5.7×1.2+4.3×1.2）×2.5．
+
=
﹣
=
÷
= 0.37+1.6=
+
=
÷
= 12.6﹣6.06= 201+75=
×
=
﹣
= 6×
= 0÷
=
×
=
+
=
÷
=
×
=
×
=
+
=
﹣
=
+
=
+
=
+
= 2
﹣1
=
﹣
= 3
﹣
=
+2
=
= 7﹣4
=
×13
=
×4= 8×
=
÷
= 5÷
=
÷8= 8÷
= 3
÷
=
÷
=
+
= 1.25×0.8= 72÷
= 10.6﹣5.62=
×
= 4.1×25+3.9×25=
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