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脱式计算.(能简算的要简算)476-364÷28;(227-57)÷34;900÷(90÷2);138+403.
题目详情
脱式计算.(能简算的要简算)
476-364÷28; (227-57)÷34; 900÷(90÷2); 138+403.
476-364÷28; (227-57)÷34; 900÷(90÷2); 138+403.
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答案和解析
(1)476-364÷28
=476-13
=463
(2)(227-57)÷34
=170÷34
=5
(3)900÷(90÷2)
=900÷45
=20
(4)138+403
=138+400+3
=538+3
=541
=476-13
=463
(2)(227-57)÷34
=170÷34
=5
(3)900÷(90÷2)
=900÷45
=20
(4)138+403
=138+400+3
=538+3
=541
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