知识点梳理
1.定义新运算是指用一个符号和已知运算表达式表示一种新的运算。2.解题方法：（1）解决此类问题，关键是要正确理解新定义的算式含义，严格按照新定义的计算顺序，将数值代入算式中，再把它转化为一般的四则运算，然后进行计算。（2）我们还要知道，这是一种人为的运算形式。它是使用特殊的运算符号，如：*、▲、★、◎、、Δ、◆、■等来表示的一种运算。（3）新定义的算式中，有括号的，要先算括号里面的。
整理教师:&&
举一反三（巩固练习，成绩显著提升，去）
根据问他()知识点分析，
试题“定义新运算．（1）若2※3=2+3+4，5※4=5+6+7+...”，相似的试题还有：
求未知数：(1)方程5x-2a=2x+1的解是x=3，求a的值．(2)定义新运算“※”，对任意整数a，b有a※b=(a+3b)÷2，求4※X=5中X的值．
规定一种新运算“△”，A△B=(A+B)÷2，例如：5△6=(5+6)÷2=5.5，2.4△4.2=(2.4+4.2)÷2=3.3．若x△10=9.9，求x．
若a#b=(a+1)÷b，求2#(3#4)的值．CAS No. , sodium,cobalt,2λ&sup&2&/sup&,3λ&sup&2&/sup&,4λ&sup&2&/sup&,5λ&sup&2&/sup&,6λ&sup&2&/sup&,7λ&sup&2&/sup&,8λ&sup&2&/sup&,9λ&sup&2&/sup&,10λ&sup&2&/sup&,12λ&sup&2&/sup&-decaborabicyclo[9.1.0]dodecane Price _ CAS Number
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