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vananh2201
2 năm trước
Thực hiện phép tính ( tính nhanh nêú có thể) a, 126 + (-20) + |-124| – (-320) b, (-17) + 5 + 8 + 17 + (-3) c, 38.77 + 24.38 – 38 d, 136.23 + 136.17 – 40.36 help me !
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