6 + (–52) = ........
(–42) + 61 = ........
23 + (–23) = ........
b)|−38| + (–11) = .......
53 – (–27) = ...........
(–13) –(–41) = .......
c)5 · (–12) = ..........
(–11) · (–9) = ......
–23 = ................
d)(–3)do kwadratu = ...............
(–81) : (–9) = .......
52 : (–13) = .........