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简便计算:100+20+4+0.8+0.16+0.032+0.0064
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简便计算:100+20+4+0.8+0.16+0.032+0.0064
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100+20+4+0.8+0.16+0.032+0.0064
=100+20+4+(0.8+0.16)+0.032+0.0064
=124+(0.96+0.0064)+0.032
=124+(0.9664+0.032)
=124+0.9984
=124.9984
=100+20+4+(0.8+0.16)+0.032+0.0064
=124+(0.96+0.0064)+0.032
=124+(0.9664+0.032)
=124+0.9984
=124.9984
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