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速算与巧算（2）959595*96-969696*95444…4（2005个4）/555…5（2005个5）=（0.1+0.12+0.123+0.1234）*（0.12+0.123+0.1234+0.12345）-（0.1+0.12+0.123+0.1234+0.12345）*（0.12+0.123+0.1234）比较0.1234*0.4321与0.12345*0.432的计
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(1)959595*96-969696*95= 959595*95 + 959595 - 959595*95 - 10101*95= 959595 - 959595 = 0(2)444…4（2005个4）/555…5（2005个5）= 4*(2005个1)/5/(2005个1)=4/5=0.8(3)（0.1+0.12+0.123+0.1234）*（0.12+0.123+0...
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