[tex] {5}^{140} \div {25}^{70} + {8}^{32} \div {16}^{24} + {100}^{25} \div {10}^{48} - {2}^{2} \times {5}^{2} = \\ {5}^{140} \div {5}^{2 \times 70} + {2}^{3 \times 32} \div {2}^{4 \times 24} + {10}^{2 \times 25} \div {10}^{48} - 4 \times 25 = \\ {5}^{140} \div {5}^{140} + {2}^{96} \div {2}^{96} + {10}^{50} \div {10}^{48} - 100 =\\ 1 + 1 + {10}^{2} - 100 = \\ 2 + 100 - 100 \\ = 2[/tex]