1.5/6()5/6x3/12.26x7/7()26 x是乘的意思啊3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.4.2/3x5()2/35.3/4x8/9()3/46.4/11x7/8()4/11x5计算下列各题,能简算的要简算1.(5/12+4/49)x122.3/4x3/7+4/7x3/43.4.3x9+4.
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![1.5/6()5/6x3/12.26x7/7()26 x是乘的意思啊3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.4.2/3x5()2/35.3/4x8/9()3/46.4/11x7/8()4/11x5计算下列各题,能简算的要简算1.(5/12+4/49)x122.3/4x3/7+4/7x3/43.4.3x9+4.](/uploads/image/z/5892809-41-9.jpg?t=1.5%2F6%28%295%2F6x3%2F12.26x7%2F7%28%2926+x%E6%98%AF%E4%B9%98%E7%9A%84%E6%84%8F%E6%80%9D%E5%95%8A3.5%2F8x3%EF%BC%88%EF%BC%893+%E9%A2%98%E7%9B%AE%E6%98%AF%EF%BC%88%E5%9C%A8%E6%8B%AC%E5%8F%B7%E4%B8%AD%E5%A1%AB%E4%B8%8A%E5%A4%A7%E4%BA%8E%E6%88%96%E5%B0%8F%E4%BA%8E%EF%BC%89%E6%8B%9C%E6%89%98%E4%BA%86.4.2%2F3x5%28%292%2F35.3%2F4x8%2F9%28%293%2F46.4%2F11x7%2F8%28%294%2F11x5%E8%AE%A1%E7%AE%97%E4%B8%8B%E5%88%97%E5%90%84%E9%A2%98%EF%BC%8C%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E8%A6%81%E7%AE%80%E7%AE%971.%285%2F12%2B4%2F49%EF%BC%89x122.3%2F4x3%2F7%2B4%2F7x3%2F43.4.3x9%2B4.)
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1.5/6()5/6x3/12.26x7/7()26 x是乘的意思啊3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.4.2/3x5()2/35.3/4x8/9()3/46.4/11x7/8()4/11x5计算下列各题,能简算的要简算1.(5/12+4/49)x122.3/4x3/7+4/7x3/43.4.3x9+4.
1.5/6()5/6x3/1
2.26x7/7()26 x是乘的意思啊
3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.
4.2/3x5()2/3
5.3/4x8/9()3/4
6.4/11x7/8()4/11x5
计算下列各题,能简算的要简算
1.(5/12+4/49)x12
2.3/4x3/7+4/7x3/4
3.4.3x9+4.3
1.5/6()5/6x3/12.26x7/7()26 x是乘的意思啊3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.4.2/3x5()2/35.3/4x8/9()3/46.4/11x7/8()4/11x5计算下列各题,能简算的要简算1.(5/12+4/49)x122.3/4x3/7+4/7x3/43.4.3x9+4.
小于 等于 小与 大 小 小 看得眼睛都痛了.
小于 等于 小与 大 小 小
1.5/6()5/6x3/12.26x7/7()26 x是乘的意思啊3.5/8x3()3 题目是(在括号中填上大于或小于)拜托了.4.2/3x5()2/35.3/4x8/9()3/46.4/11x7/8()4/11x5计算下列各题,能简算的要简算1.(5/12+4/49)x122.3/4x3/7+4/7x3/43.4.3x9+4.
巧算:1x2+2x3+3x4+4x5+5x6+6x7...+8x9
1x2+2x3+3x4+4x5+5x6+6x7+7x8+8x9+9x10+10x11
1/1x3+1/2x4+1/3x5+1/4x6+1/5x7+1/6x8
(2X2)/1X3+(4X4)/(3X5)+(6X6)/(5X7)+...+(20X20)/(19X21)==?
1x2+2x3+3x4+4x5+5x6+6x7+7x8+8x9=
1/1x2+2/1x3+3/1x4+4/1x5+5/1x6+6/1x7=
1+2X3+4X5+6X7+8X9=505请回复
1+2X3+4X5+6X7+8X9=1005运用( ) [ ]
添加()[ ] {} 1+2X3+4X5+6X7+8X9=1005
填括号使等式成立1+2x3+4x5+6x7+8x9=4455
1+2X3+4X5+6X7+8X9=303
23X5/221/2-5/6X1/2(5/12-7/18)X363/4X8/9-1/37/9+7/9X85/8X7-5/8X3
1/1X2-5/2X3+1/3X4-19/4X5+1/5X6-41/6X7这个题目怎么做
1x2分之1+2x3分之1+3x4分之1+4x5分之1+5x6分之1+6x7分之1 等几?
1/1x2+1/2x3+1/3x4+1/4x5+1/5x6+1/6x7+1/7x8
计算:1/1x2+1/2x3+1/3x4+1/4x5+1/5x6+1/6x7+1/7x8+1/8x9+1/9x10.
1x2+2x3+3x4+4x5+5x6+6x7+7x8+.+nx(n+1) 要公式,别搞太深奥!