简便运算ppt1x2+2x4+3x9.100x200_____________________________2x3+4x6+6x9.200x300

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简便运算ppt1x2+2x4+3x9.100x200_____________________________2x3+4x6+6x9.200x300
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简便运算ppt1x2+2x4+3x9.100x200_____________________________2x3+4x6+6x9.200x300
简便运算ppt
1x2+2x4+3x9.100x200
_____________________________
2x3+4x6+6x9.200x300

简便运算ppt1x2+2x4+3x9.100x200_____________________________2x3+4x6+6x9.200x300
= (1x2) / (2x3)
= 1/3

原式=6x(1+2^2+~~~+100^2)
=6x1/6x100x(100+1)x(2x100+1)
=2030100

简便运算ppt1x2+2x4+3x9.100x200_____________________________2x3+4x6+6x9.200x300 (1x2+2x4+3x6+4x8)/(2x3+4x6+6x9+8x12)简便方法啊, 1x2+2x4+3x6+4x8 ------------------------------- 2x3+4x6+6x9+8x12简便方法啊(1x2+2x4+3x6+4x8 )/( 2x3+4x6+6x9+8x12) 黄冈小状元数学5年级上第七页培优作业用简便方法计算下面各题.(1)2.9x0.45+0.29x4.2+0.029x13(2)3.84x9.6+0.96x61.6要简便运算详细写出过程 1/1x2+1/2x3+1/3x4+1/4x5+……1/8x9+1/9x10=?(简便算法)快~~~~~ 计算,呃呃呃脱式,不要简便0.75X9/11÷3/4 1+2/3÷4/5-1/6 5/8X4-2/5÷4/15 谁能告诉我这几道题的简便算法4X7/2+4X9/2+7/5X4 (3/1-5/1)X45 简易运算计算以下题目:1、2.9x0.45+0.29x4.2+0.029x132、3.84x9.6+0.96x61.6 简便运算:98x4/5+3x4/5-4/5 1/2x3+1/3x4+1/4x5.+1/8x9+1/9x10 巧算:1x2+2x3+3x4+4x5+5x6+6x7...+8x9 化简:(1x3)分之一+(2x4)分之一+(3x5)分之一+...+(7x9)分之一+(8x10)分之一 (12.5x25)x4简便运算 运用简便算法:(1)1.22²x9-1.33²x4 (2)1001/2003²-2001²(1-1/2²)(1-1/3²).(1-1/10²) 数学建模的LINGO使用问题modelmin=x0+x11+x8+x9;x0+x1+x2+x3+x4+x5+x6+x7+x8+x9+x10+x11=11;x0+x1+x3+x4>=4;x1+x2+x4+x5>=4;x2+x3+x5+x6>=4;x3+x4+x6+x7>=3;x4+x5+x7+x8>=3;x5+x6+x8+x9>=4;x6+x7+x9+x10>=4;x7+x8+x10+x11>=2;x8+x9+x11+x0>=2;x9+x10+x0+x1>=1; (324又7分之1-810又6分之1+486.5)x4.2 简便运算 急~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (324又7分之1-810又6分之1+486.5)x4.2简便运算, 9/2x4/5x3/8简便运算