2\/9-7\/16×2\/9简便计算
2\/9-7\/16×2\/9 =(1-7\/16)×2\/9 =9\/16×2\/9 =18\/144 =1\/8
2\/9-7\/16×2\/9的简便运算怎么做?
2\/9-7\/16×2\/9 =2\/9×(1-7\/16)=2\/9×9\/16 =2\/16 =1\/8 方法二(直接计算):2\/9-7\/16×2\/9 =2\/9-7\/72 =16\/72-7\/72 =9\/72 =1\/8
(2\/9-7\/16×2\/9)怎么简便运算?
简便计算方法如下 1、提取原式: 2\/9-7\/16×2\/9 2、计算过程:=2\/9×( 1-7\/16 )=2\/9×9\/16 =2\/16×9\/9 =2\/16×1 =2\/16 =1\/8 3、计算结果: 1\/8 4、谢谢,期待您的采纳!
怎样计算2\/9—7\/16*2\/9?
2\/9—7\/16*2\/9简便计算过程如下:2\/9—7\/16*2\/9 =2\/9×(1-7\/16)(乘法分配律的逆用)=2\/9×(16\/16-7\/16)(通分,把1化成16\/16)=2\/9×9\/16(同分母的减法)=2\/16(约分)=1\/8(化成最简分数)
2\/9-7\/16×2\/9简便计算怎么算的
计算过程如下:2\/9-7\/16×2\/9 =( 1- 7\/16) x 2\/9 = 9\/16 x 2\/9 = 1\/ 8
2\/9-7\/16×2\/9的简便运算过程是什么?
2\/9-7\/16×2\/9的简便运算过程是:2\/9-7\/16×2\/9 =(1-7\/16)×2\/9 =9\/16×2\/9 =9\/9×2\/16 =1×1\/8 =1\/8 解题分析:首先因为两个式子里都是有相同的因数,所以就是进行乘法分配律的逆运算,第一步就是提取相同因数2\/9,然后对括号里的数字进行减法运算,需要先进行通分,得出...
2\/9减7\/16×2\/9简便运算?
方法一(简便运算):2\/9-7\/16×2\/9 =2\/9×(1-7\/16)=2\/9×9\/16 =2\/16 =1\/8 方法二(直接计算):2\/9-7\/16×2\/9 =2\/9-7\/72 =16\/72-7\/72 =9\/72 =1\/8 ...
2\/9减7\/16乘2\/9等于多少?
2\/9减7\/16乘2\/9等于1\/8。解:2\/9-(7\/16)x(2\/9)=(2\/9)x(1-7\/16)=(2\/9)x(9\/16)=(2x9)\/(9x16)=1\/8
2\/9-7\/16×2\/9的简便运算怎么列?
2\/9-7\/16×2\/9 =2\/9×(1-7\/16)=2\/9×9\/16 =1\/8
2\/9-7\/16×2\/9用简便方法怎么算
2\/9-7\/16×2\/9简便计算方法如下:将2\/9提出:2\/9×(1-7\/16)=2\/9×9\/16 =1\/8 此题的知识点涉及到乘法分配律:字母表示:变式:示例:77×2-37×2 =2×(77-37)=2×40 =80