5×0.18×2.37的简便计算？
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5×0.18×2.37
=0.9×2.37
=（1-0.1）×2.37
=1×2.37-0.1×2.37
=2.37-0.237
=2.133
=0.9×2.37
=（1-0.1）×2.37
=1×2.37-0.1×2.37
=2.37-0.237
=2.133
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5×0.18×2.37
=5×2×0.09×2.37
=10×0.09×2.37
=0.9×2.37
=(1-0.1)×2.37
=1×2.37-0.1×2.37
=2.37-0.237
=2.133
=5×2×0.09×2.37
=10×0.09×2.37
=0.9×2.37
=(1-0.1)×2.37
=1×2.37-0.1×2.37
=2.37-0.237
=2.133
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5x0.18x2.37
=(5x0.2)x(0.9x2.37)
=1x2.133
=2.133
=(5x0.2)x(0.9x2.37)
=1x2.133
=2.133
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