36×22+19×22+66×15用简便方法计算?
3个回答
展开全部
=36×22+19×22+22×45
=(36+19+45)×22
=100×22
=2200
=(36+19+45)×22
=100×22
=2200
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展开全部
36×22+19×22+66×15
=36×22+19×22+22×3×15
=(36+19+3×15)×22
=100x22
=2200
=36×22+19×22+22×3×15
=(36+19+3×15)×22
=100x22
=2200
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