Calculati:
[tex]7 \times {7}^{23} \div {7}^{24} [/tex]
[tex] {11}^{50} - 11 \times {11}^{49} [/tex]
[tex] {2}^{17} \times {2}^{18} - {2}^{34} \times 2[/tex]
[tex](29 - 2 \times 7) ^{2} \times {15}^{20} - {15}^{22} [/tex]
[tex](12 - 3) ^{2} \times (6 + 3) ^{18} - {9}^{20} [/tex]
[tex]( { 4}^{2} \div {3}^{2}) ^{2} \times {4}^{18} \div {256}^{5} [/tex]
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