这题怎么做啊!
2个回答
2015-08-10
展开全部
图中题目
8.2×3.5+51.7×3.5+0.35
=8.2×0.35×10+51.7×0.35×10+0.35
=82×0.35+517×0.35+0.35×1
=(82+517+1)×0.35
=600×0.35
=210
8.2×3.5+51.7×3.5+0.35
=8.2×0.35×10+51.7×0.35×10+0.35
=82×0.35+517×0.35+0.35×1
=(82+517+1)×0.35
=600×0.35
=210
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