Lời giải:
$2024\equiv 24\pmod {100}$
$\Rightarrow 2024^{2025}\equiv 24^{2025}\pmod {100}$
Mà:
$24^3\equiv 24\pmod{100}$
$\Rightarrow 24^{2025}\equiv 24^{675}\equiv (24^3)^{225}\equiv 24^{225}\equiv (24^3)^{75}\equiv 24^{75}\equiv (24^3)^{25}$
$\equiv 24^{25}\equiv (24^3)^8.24\equiv 24^8.24\equiv 24^9$
$\equiv (24^3)^3\equiv 24^3\equiv 24\pmod {100}$
Vậy 2 chữ số tận cùng của $2024^{2025}$ là $24$