a. 58.75 + 58.50 – 58.25 b. 20 : 2² – 59 : 58. c. (519 : 517 – 4) : 7
d. –84 : 4 + 39 : 37 + 50. e. 295 – (31 – 2².5)² f. 1125 : 1123 – 35 : (110 + 23) – 60
g. 29 – [16 + 3.(51 – 49)] h. 47 – (45.24 – 5².12) : 14 i. 10² – 60 : (56 : 54 – 3.5)
j. 2345 – 1000 : [19 – 2(21 – 18)²] k. 205 – [1200 – (4² – 2.3)³] : 40
ℓ. 500 – {5[409 – (2³.3 – 21)²] + 10³} : 15 m. 67 – [8 + 7.3² – 24 : 6 + (9 – 7)³] : 15
n. (–23) + 13 + (–17) + 57 o. (–123) + |–13| + (–7) p. |–10| + |45| + (–|–455|) + |–750|
q. –|–33| + (–15) + 20 – |45 – 40| – 57. h. 9.|40 – 37| – |2.13 – 52|