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vpertrieu
2 năm trước
Câu 1 Bỏ dấu ngoặc rồi tính. a) (-145) – (18 – 145) b) 111 + (-11 + 27) c) 10 – [12 – (- 9 - 1)] d) 271 – [(-43) + 271 – (-17)] Câu 2: Sắp xếp các số nguyên sau theo thứ tự tăng dần: 7; -12 ; +4 ; 0 ; │-8│; -10; -1
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