3.6+6.4×0.73的简便算法
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3.6+6.4×0.73
=3.6×(0.73+0.27)+6.4×0.73
=0.73×(3.6+6.4)+3.6×0.27
=7.3+9×0.4×9×0.03
=7.3+81×0.012
=7.3+81×(0.01+0.002)
=7.3+0.81+0.162
=8.272
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展开全部
3.6+6.4×0.73
=3.6×(0.73+0.27)+6.4×0.73
=0.73×(3.6+6.4)+3.6×0.27
=7.3+9×0.4×9×0.03
=7.3+81×0.012
=7.3+81×(0.01+0.002)
=7.3+0.81+0.162
=8.272
=3.6×(0.73+0.27)+6.4×0.73
=0.73×(3.6+6.4)+3.6×0.27
=7.3+9×0.4×9×0.03
=7.3+81×0.012
=7.3+81×(0.01+0.002)
=7.3+0.81+0.162
=8.272
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展开全部
3.6+6.4×0.73
=3.6×(0.73+0.27)+6.4×0.73
=0.73×(3.6+6.4)+3.6×0.27
=7.3+9×0.4×9×0.03
=7.3+81×0.012
=7.3+81×(0.01+0.002)
=7.3+0.81+0.162
=8.272
=3.6×(0.73+0.27)+6.4×0.73
=0.73×(3.6+6.4)+3.6×0.27
=7.3+9×0.4×9×0.03
=7.3+81×0.012
=7.3+81×(0.01+0.002)
=7.3+0.81+0.162
=8.272
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3.6+6.4×0.73
=3.6+4.672
=8.272
=3.6+4.672
=8.272
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3.6+6.4x0.73
=3.6+6.4x(1-0.27)
=3.6+6.4 - 6.4x(0.25+0.02)
=10 - (1.6x4x0.25 + 6.4x0.02)
=10- (1.6+0.128)
=10 -1.728
= 8.272
=3.6+6.4x(1-0.27)
=3.6+6.4 - 6.4x(0.25+0.02)
=10 - (1.6x4x0.25 + 6.4x0.02)
=10- (1.6+0.128)
=10 -1.728
= 8.272
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