第54页

信息发布者：
a
79
146
39
142
+
195
37
+
171
29
+
117
366
+
②
④⑤
=134+166+269
=300+269
=569
=(228+172)+247
=400+247
=647
=835-(169+31)
=835-200
=635
=743-235-143
=743-143-235
=600-235
=365
=469+300+4
=769+4
=773
=(371+329)+(275+135)
=700+410
=1110
264

335
31
78
59
74
23
115
83
117
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