题目内容
| 用递等式计算． 235+24×12 | 2.6÷（0.74-0.24）×2.5 |
| [1-（
|
235+24×12
=235+288，
=523；
2.6÷（0.74-0.24）×2.5
=2.6÷0.5×2.5，
=5.2×2.5，
=13；
×
+
=
+
，
=
+
，
=
；
[1-（
-
）]÷
=[1-（
-
）]÷
，
=[1-
]×
，
=
×
，
=
．
=235+288，
=523；
2.6÷（0.74-0.24）×2.5
=2.6÷0.5×2.5，
=5.2×2.5，
=13；
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