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(36.5乖99-63.5)除500简算,

题目详情
(36.5乖99-63.5)除500简算,
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答案和解析
(36.5×99-63.5)÷500
=[36.5×(100-1)-63.5]÷500
=[36.5×100-36.5×1-63.5]÷500
=[3650-(36.5+63.5)]÷500
=[3650-100]÷500
=3550÷500
=(3550×2)÷(500×2)
=7100÷1000
=7.1