5.39×1.99+5.39简便运算?
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本题简便计算过程如下:
5.39*1.99+5.39
=5.39*1.99+5.39*1
=5.39*(1.99+1)
=5.39*2.99
=5.39*(3-0.01)
=5.39*3-5.39*0.01
=16.17-0.0539
=16.1161.
5.39*1.99+5.39
=5.39*1.99+5.39*1
=5.39*(1.99+1)
=5.39*2.99
=5.39*(3-0.01)
=5.39*3-5.39*0.01
=16.17-0.0539
=16.1161.
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2021-09-23
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5.39*1.99+5.39
5.39*1.99+5.39
解:原式=5.39*(1.99+1)
=5.39*2.99
=(5.4-0.01)*(3-0.01)
=16.2-0.03-0.054+0.0001
=16.1161
5.39*1.99+5.39
解:原式=5.39*(1.99+1)
=5.39*2.99
=(5.4-0.01)*(3-0.01)
=16.2-0.03-0.054+0.0001
=16.1161
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=5.39X(1.99+1)
=5.39X(3-0.01)
=5.39X3-5.39X0.01
=16.17-0.0539
=16.1161
=5.39X(3-0.01)
=5.39X3-5.39X0.01
=16.17-0.0539
=16.1161
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5.39×1.99+5.39
=5.39×(1.99+1)
=5.39×2.99
=5.39×(3-0.01)
=5.39×3-5.39×0.01
=16.17-0.0539
=16.1161
=5.39×(1.99+1)
=5.39×2.99
=5.39×(3-0.01)
=5.39×3-5.39×0.01
=16.17-0.0539
=16.1161
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