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tranloan214
2 năm trước
Câu 13 : Thực hiện phép tính: a) 33 + 36 + 67 + 64 b) 18. 49 + 18. 51 c) (5²⁰²² + 5²⁰²¹) : 5²⁰²¹ d) 2. [(7 – 3³:3²) : 2² + 99] – 100. 2021⁰
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