2
2
4. Calculează:
2
6
a) 3-
5
21
10
c) 4-
5
2
23
10
3)
2
2
48
10
d) 49
28-
+
e) 8-
7.
5
93
25
93 =
f)} +8 – 26 29
5 10
5
2
2
2
29 41
5 20
31
10
h)
59
10
TO
13
5
)
- 4 =
i) (
7.
2
16
5
1
2-22=
