0
1. Uzupełnij:
a) strata 6 i strata 9 to strata 15
-6 + (-9) = -15
b) strata 40 i strata 20 to
-40 + (-20)
==
c) strata 23 i strata 37 to
+
=
d) strata 50 i zysk 90 to
-50 +
90
=
e) zysk 10 i strata 28 to
10 + (-28)
f) strata 20 i zysk 15 to
+
=
g) zysk 55 i strata 100 to
+
h) strata 3,2 i zysk 5,2 to
+​