5×6×7-2×3×4/5×6×7数学简便算法sorry!少打了个括号!正确题目:(5×6×7-2×3×4)/5×6×7
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/06 04:19:26
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5×6×7-2×3×4/5×6×7数学简便算法sorry!少打了个括号!正确题目:(5×6×7-2×3×4)/5×6×7
5×6×7-2×3×4/5×6×7数学简便算法
sorry!少打了个括号!
正确题目:(5×6×7-2×3×4)/5×6×7
5×6×7-2×3×4/5×6×7数学简便算法sorry!少打了个括号!正确题目:(5×6×7-2×3×4)/5×6×7
(5*6*7-2*3*4)/5*6*7
=5x6x7/5x6x7-2x3x4/5x6x7
=1-2x3x4/5x6x7
=1-6x4/5x6x7
=1-4/5x7
=1-4/35
=31/35