Toán Lớp 6: 81^7-27^9-9^13 chia hết cho 45
10^9+10^8+10^7 chia hết cho 555
M.n làm nhanh hộ mjk vs ạ
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Toán Lớp 6: 81^7-27^9-9^13 chia hết cho 45
10^9+10^8+10^7 chia hết cho 555
M.n làm nhanh hộ mjk vs ạ
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