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4 Calculaţi:
a 11²;
€ 2+0%;
m (7-2)²;
$7².7¹-7⁰
b 13²,
h2º-2;
n 52-(3-2) 100.
t5³:5²-5¹;
c7² +8²;
10-2²;
07²-2²
d 1100 +000+4³;
i (5-2):
p (3+2)²;
e 5²-5²;
k
(2-3):
q 25²:5
f 5t-5th
1(2)
& 7²-7th-