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5. Efectuați:
a) [7×(14-2×7)÷2]²
b) (10²-8²)÷6÷2+1²⁰¹⁹
c) [17×(25-8×3)×1²⁰²¹-15]×2³-2²×3
d) [(9²-2⁴×5)÷1+5⁹:(5²)⁴]×2²
e) {[(169÷13-2³)÷5+(7×2³-2×3)÷5+2³]÷19+5}×2³-2⁴×3
f) (3³²÷3²+2²×2²⁵-2019⁰)÷(27¹⁰+8⁹-324÷18²)

6. Calculați:
a) {[1200×(8-200÷25)+36]-3096÷387}÷2²
b) 13²+5×{2316÷579+[40+2³×(2⁴×5²+10-2²×3²)]×5}+11
c) 2×[3³×2⁴÷3÷(148÷37+12)]-882:49
d) [(2²×7×2÷14-27÷3³)÷1+524÷131]×6-6²
e) 1600÷4÷[3×70-(2×45-3²×2³×5×3÷12)÷5³×2²+95×2]×12​