=5×5×4×27
=100×27
=2700本回答被网友采纳
5X27X5X4简便运算
5X27X5X4 =5×5×4×27 =100×27 =2700
怎样简便计算1到100的乘法算式?
=可以用乘法交换率 =(1x2x3x4x5x6x7x8x9x10)x(11x12x13x14x15x16x17x18x19x20)x(21x22x23x24x25x26x27x28x29x30)x(31x32x33x34x35x36x37x38x39x40)x(41x42x43x44x45x46x47x48x49x50)x(51x52x53x4x55x56x57x58x59x60)x(61x62x63x64x65x66x67x68x69x70)x(71x72x...
11 计算下面各题 的简便计算 怎么做
第一题计算器算出来是111111111 后面几题都是第一题的倍数，因为乘数18=9*2，27=9*3，36=9*4，45=9*5，54=9*6 所以第2题为第1题的2倍，1234.5679*18=1234.5679*9*2=111111111*2=222222222，同理后面的也是这么做的
从1乘到100?
就是362880的平方*10 ``就可以用计算器算出来了吧`最后等于131681 94400
四年级数学简便计算题大全
38X4X25 125X27X8 =38X（4X25） =125X8X27 =38X100 =1000X27 =3800 =27000
数学简便运算。。。求答案。。。
1. (50-1)x(6x5) 2. (4x25)x103 3. (40-4)x(15x6) 4. 45x27x(20-1) 5. (2x5)x(125x8) 6. 25x4x29 7. 25x4x17 8. 31x(100-1) 9 42x(100-2) 10. (125x8)x5 ...
1乘2乘3乘4...乘100等于几
=可以用乘法交换率 =(1x2x3x4x5x6x7x8x9x10)x(11x12x13x14x15x16x17x18x19x20)x(21x22x23x24x25x26x27x28x29x30)x(31x32x33x34x35x36x37x38x39x40)x(41x42x43x44x45x46x47x48x49x50)x(51x52x53x4x55x56x57x58x59x60)x(61x62x63x64x65x66x67x68x69x70)x(71x72x...
1乘2乘3一直乘到100,求过程和结果急急急!!!
=用乘交换率 =(1x2x3x4x5x6x7x8x9x10)x(11x12x13x14x15x16x17x18x19x20)x(21x22x23x24x25x26x27x28x29x30)x(31x32x33x34x35x36x37x38x39x40)x(41x42x43x44x45x46x47x48x49x50)x(51x52x53x4x55x56x57x58x59x60)x(61x62x63x64x65x66x67x68x69x70)x(71x72x73x74...
[1x2x3x4x5x6x7...x10x11]除[22x24x25x27]的答案
解：原式= 22x24x25x27\/2\/3\/4\/5\/6\/7\/8\/9\/10\/11= (22\/2\/11)x(24\/8\/3)x(25\/5)x(27\/9)\/4\/6\/7\/10= 1x1x5x3\/4\/6\/7\/10= 1\/4\/7= 二十八分之一
1×2×3×4×5×6×7×8×9×...×100后面有多少个0?
24个 1 每隔5个，会产生一个0，比如 5， 10 ，15，20.。。2 每隔 5×5 个会多产生出一个0，比如 25，50，75，100 3 每隔 5×5×5 会多出一个0，比如125.。。所以 100的末尾0的个数为 100\/5 + 100\/25 = 20+4 = 24个 ...
