2.4×1.25×0.350×(6.7×0.02)简便运算什么写？

原式=2.4×(1.25×0.02)×0.35×6.7
=2.4×0.025×0.35×6.7
=(2×0.025+0.4×0.025)×0.35×6.7
=(0.05+0.01)×0.35×6.7
=0.06×5×0.07×6.7
=0.3×0.07×6.7
=0.021×6.7
=0.1407

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