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anold992
2 năm trước
1 ) Tính nhanh a ) 12,43 x 3,8 + 3,8 x 4,57 b ) 8,3 x 11,5 - 8,3 x 0,5 - 8,3 c ) ( 7,5 x 18,3 x 26,4 x 18,3 ) x ( 47 x 11 - 470 - 47 )
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