（2013?雨花台区模拟）张老师家新买的一套住房，平面图如下：（单位：米）（1）请你算一算这套住房一共有 有一套住房的平面图如右图：（单位：m）（1）请你算一算这套住...
\u5f20\u8001\u5e08\u5bb6\u65b0\u4e70\u7684\u4e00\u5957\u4f4f\u623f\uff0c\u5e73\u9762\u56fe\u5982\u56fe\uff1a\uff08\u5355\u4f4d\uff1a\u7c73\uff09\uff081\uff09\u8bf7\u4f60\u7b97\u4e00\u7b97\u8fd9\u5957\u4f4f\u623f\u4e00\u5171\u6709\u591a\u5c11\u5e73\u65b9\u7c73\uff1f\uff082\uff09\u5bf9\u53a8\uff085+7\uff09\u00d7\uff083+3\uff09+3.14\u00d7\uff086?22\uff092\u00f72=12\u00d76+3.14\u00d74\u00f72=72+6.28=78.28\uff08\u5e73\u65b9\u7c73\uff09\uff1b\u7b54\uff1a\u8fd9\u5957\u623f\u5b50\u7684\u603b\u9762\u79ef\u662f78.28\u5e73\u65b9\u7c73\uff0e\uff082\uff09288\u00d7\uff0850\u00d750\uff09\u00f7\uff0860\u00d760\uff09=288\u00d72500\u00f73600=200\uff08\u5757\uff09\u7b54\uff1a\u9700\u8981200\u5757\uff0e
\uff081\uff09\u534a\u5706\u5f62\u53a8\u623f\u7684\u534a\u5f84\u4e3a\uff1a\uff083+3-2\uff09\u00f72=4\u00f72=2\uff08m\uff09\uff0c\uff084+8\uff09\u00d7\uff083+3\uff09+3.14\u00d722\u00f72=72+6.28\uff0c=78.28\uff08m2\uff09\uff1b\u7b54\uff1a\u8fd9\u5957\u4f4f\u623f\u517178.28m2\uff0e\uff082\uff09\u5367\u5ba4\u548c\u5ba2\u5385\u7684\u603b\u9762\u79ef\u662f\uff1a\uff084+8\uff09\u00d7\uff083+3\uff09-\uff088-5\uff09\u00d72\uff0c=72-6\uff0c=66\uff08m2\uff09\uff0c\u6bcf\u5757\u65b9\u7816\u7684\u9762\u79ef\u662f\uff1a50\u00d750=2500\uff08cm2\uff09\uff0c2500cm2=0.25m2\uff0c\u6240\u8981\u8d2d\u4e70\u65b9\u7816\u7684\u5757\u6570\u662f\uff1a\uff0866\u00f70.25\uff09\u00d7110%\uff0c=264\u00d7110%\uff0c=290.4\uff0c\u2248291\uff08\u5757\uff09\uff0c\u6240\u4ee5\u8d2d\u4e70\u65b9\u7816\u9700\u8981\u7684\u94b1\u6570\u662f\uff1a291\u00d730=8730\uff08\u5143\uff09\uff0e\u7b54\uff1a\u8d2d\u4e70\u65b9\u7816\u97008730\u5143\uff0e
（5+7）×（3+3）+3.14×(| 6?2 |
| 2 |
=12×6+3.14×4÷2，
=72+6.28，
=78.28（平方米）；
答：这套房子的总面积是78.28平方米．
（2）3×5=15（平方米）=1500平方厘米，
50×50=2500平方厘米=25平方分米，
1500÷25×20，
=1200（元），
答：需要1200元．
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