29一23=6,6x12=72,576÷72=8列一个综合算式 哪些理工科专业对数学要求高
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4.\u4f60\u4eca\u5e74\u8003\u4e86626\u5206\uff0c\u8003\u7684\u7b97\u662f\u5f88\u4e0d\u9519\u4e86\uff0c\u53ef\u4ee5\u62a5\u4e00\u4e2a985\u9662\u6821\u6bd4\u8f83\u5f3a\u7684\u4e13\u4e1a\u4e86\uff0c\u5475\u5475\uff01\u795d\u4f60\u4e00\u5207\u987a\u5229\uff0c\u8003\u4e0a\u4f60\u6700\u7406\u60f3\u7684\u5927\u5b66\uff01
576÷[(29-23)X12]
=576÷(6X12)
=576÷72
=8
扩展资料
四则运算的运算顺序:
1、如果只有加和减或者只有乘和除,从左往右计算。
2、如果一级运算和二级运算,同时有,先算二级运算。
3、如果一级,二级,三级运算(即乘方、开方和对数运算)同时有,先算三级运算再算其他两级。
4、如果有括号,要先算括号里的数(不管它是什么级的,都要先算)。
5、在括号里面,也要先算三级,然后到二级、一级。
如图
576÷[(29-23)X12]
=576÷(6X12)
=576÷72
=8
576÷[(29-23)X12]
绛旓細576梅[锛29-23锛塜12]=576梅(6X12)=576梅72 =8
绛旓細12.5x4.5+4.5x12.5+12.5 =12.5x锛4.5+4.5+1锛=12.5x10 =125 锛1锛3.4脳7.8梅3.9 锛2锛85梅0.17梅5 锛3锛0.125脳锛2.4+0.8锛壝2.5 锛4锛9.9脳9.9 锛5锛17.3脳9.9+1.73 锛6锛8.5脳96+34 锛7锛1.1+2.1+3.1+4.1+5.1 锛8锛99.9脳999+99.9脳2...
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