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nguyentungphat5d
2 năm trước
a] 28 X ( 231 + 69 ) + 72 x( 231+ 69 b] 8x9x14+6x17x12+19x4x18 c] 19x64+76x34 d] 136x68+16x272 e] 867-(167 + 80 ) g] (527 + 49 )- 127 h] (1+3+5=.....+9 ) x ( 24x222-48x111) tính nhanh
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