122 va 17( ap dung theo cach hieu va ti so)
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a) Cho 2 so co hieu la 105. Neu so lon chia so be thu duoc thuong la 7 du 3. Tim 2 so da cho.
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tong cua 3 so la so lon nhat co 3 chu so. Neu lay so thu nhat chia cho so thu 2 thi duoc thuong la 5 du 3. So thu nhat hon tong cua 2 so kia la 7 don vi. So thu nhat hon so thu hai la .......
Hieu cua 2 so la 36.Neu lay so thu nhat chia cho so thu hai thi duoc thuong la 4 va du 3.Tim moi so
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hai so tu nhien co hieu bang 178 tim hai so ay biet rang neu dem so lon chia cho so nho thi duoc thuong la 8 va duoc so su la 17 ?
tong cua ba so la so lon nhat co ba chu so . Neu lay so thu nhat chia cho so thu hai thi dc thuong la 5 du 3 so thu nhat hon tong hai so con lai 7 don vi.Tim so thu nhat trong ba so do ?
cho so co hai chu so ,neu lay so do chia cho hieu cua chu so hang chuc va hang don vi cua no thi duoc thuong la 18 va du 4.tim so da cho