28.67×67+3.2×286.7+573.4×0.05?递等式简便运算

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28.67×67+3.2×286.7+573.4×0.05?递等式简便运算
28.67×67+3.2×286.7+573.4×0.05?
递等式简便运算

28.67×67+3.2×286.7+573.4×0.05?递等式简便运算
28.67×67+3.2×286.7+573.4×0.05?=286.7×6.7+3.2×286.7+286.7×2×0.05 =286.7×(6.7+3.2+0.1) =286.7×10 =2867