会的进 递等式0.79x0.46+7.9x0.24+11.4x0.07969316.931/69.31(3.4x4.8x9.5)/(1.9x1.7x2.4)1990x198.9-1989x198.8要巧算的~·
来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/17 01:15:18
会的进递等式0.79x0.46+7.9x0.24+11.4x0.07969316.931/69.31(3.4x4.8x9.5)/(1.9x1.7x2.4)1990x198.9-1989x198.8要巧
会的进 递等式0.79x0.46+7.9x0.24+11.4x0.07969316.931/69.31(3.4x4.8x9.5)/(1.9x1.7x2.4)1990x198.9-1989x198.8要巧算的~·
会的进 递等式
0.79x0.46+7.9x0.24+11.4x0.079
69316.931/69.31
(3.4x4.8x9.5)/(1.9x1.7x2.4)
1990x198.9-1989x198.8
要巧算的~·
会的进 递等式0.79x0.46+7.9x0.24+11.4x0.07969316.931/69.31(3.4x4.8x9.5)/(1.9x1.7x2.4)1990x198.9-1989x198.8要巧算的~·
0.79x0.46+7.9x0.24+11.4x0.079
7.9x0.24+0.79x0.46+0.079x11.4
=0.079{(100x0.24)+(10x0.46)+(1x11.4)}
=0.079(24+4.6+11.4)
=0.079x40
=3.16
69316.931/69.31
=(69310+6.931)/69.31
=69310/69.31+6.931/69.31
=1000+0.1=1000.1
(3.4x4.8x9.5)/(1.9x1.7x2.4)
={2x1.7x2x2.4x5x1.9}/(1.9x1.7x2.4)
=2x2x5
=20
1990x198.9-1989x198.8
=1990x(198.8+0.1)-1989x198.8
=199+1990x198.8-1989x198.8
=199+198.8(1990-1989)
=199-198.8
=2
会的进 递等式0.79x0.46+7.9x0.24+11.4x0.07969316.931/69.31(3.4x4.8x9.5)/(1.9x1.7x2.4)1990x198.9-1989x198.8要巧算的~·
递等式算式!2.75X0.19+0.125X1.9 六年级的,简便!过程!一小时内!
用递等式:1.25X0.7X0.8的简便计算.用五年级的方法(整数乘法运算定律推广到小数)
72x0.81+10.4(用简便计算)列递等式
每课必练 21.1x0.99 用递等式计算
0.3x2.5x0.4用递等式怎么算?
为什么g(x0)会等于x0?怎么看的?
52x0.25等于?简便运算递等式还有12.5x(20一0.8)一样的要求
0.5X0.3+0.27X0.4+0.719=1调换等号左边的两个数,使等式成立
把下面的等式改写成比例(写八个)2.5x0.4=0.5x2
0.27+9.9X0.027梯等式的简算方法是什么?
递等式简算,0.9999x0.8+0.1111x2.8简算,说明.
0.8x9.5x12.5x0.2等于递等式简便计算
2.25x4.8+77.5x0.48等于多少?(要求递等式计算)一定给好评!
递等式计算 0.24x5+9.6÷12 25.2+74.8x0.4 1-十二分之一+十五分之四
在表示函数的时候,比如f(x0-(1-x0)x),一般会把外面那个括号变成方括号吗?
小学六年级数学在线解答一、简便运算.72x0.125=== (注意递等式,谢谢!) 填空( )米是80米的25%120的60%是( )
o.01x0.02x0.03x...x0.23x0.24x0.25的积化简后有几位小数?