thao2k93108 thao2k93108

18-08-2021
Mathematics

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Tính nhanh : a) 35-7(5-18) ; b) 217-(-83)+99-(93+99) ; c) [4(-5)^2-(31-17)]:2

Tính nhanh a 357518 b 21783999399 c 45231172 class=

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JeremyMichelyn JeremyMichelyn

18-08-2021

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