Toán Lớp 6: 1 câu dễ nè 21. [(1245+987]:8

21. [(1245+987):8 - 15. 12]+ 21 = [2232 : 8 - 15 . 12] + 21 = [279 - 180 ]+21 = 21 .99 +21 = 2079 +21 =2100 Haizz lỗi tí mà mk tưởng là câu 21 ==

21.[(1245+987):8-15.12]+21 =21.(2232:8-15.12)+21 =21.(279-180)+21 =21.99+21 =21.(99+1) =21.100 =2100

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Toán Lớp 6: 1 câu dễ nè 21. [(1245+987]:8 – 15. 12]+ 21