a) 1 000 : 125.35 = 7.97
b) 234.2 + 169 : 13 = 247.2 + 13 = 260.2
c) 10².3² + 5³ = 100.9 + 125 = 1025
d) (21 + 19) : 40² + 31 - 1 600 = 40 : 1600 + 31 - 1600 = 0 + 31 - 1600 = -1569
e) (2 121 + 12.21) : 21 = 2133 : 21 = 101.57
f) 57 - 24 : 3.4 + 17.572 = 57 - 6.4 + 17.572 = 57 - 1.5 + 17.572 = 73.072
g) 124 : 12³ + 7³ : 7 = 124 : 1728 + 343 : 7 = 0.0718 + 49 = 49.0718
h) (572 - 72)² + 3³.2 - 20 000.52 = 500² + 27.2 - 20000.52 = 250000 + 54.2 - 20000.52 = 230054.68
i) 46.(2 020 + 40.102) + 54.(2 020 + 40.102) = 46.2120 + 54.2120 = 95280 + 115848 = 211128
j) 2 345 + [11² - (575 - 572)³ + 6]² = 2345 + [121 - 3³ + 6]² = 2345 + [121 - 27 + 6]² = 2345 + 100² = 2345 + 10000 = 12345
k) 18 576 : {105⁰ + [2.(102 + 101 - 100 - 99 + 98 + 97 - 96 - 95 + ... - 4 - 3 + 2 + 1) - 201]}³ = 18576 : {105⁰ + [2.(0) - 201]}³ = 18576 : {1 + [0 - 201]}³ = 18576 : {-200}³ = 18576 : -8000000 = -0.002322