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a) = 3+2-5+4=4
b) = 16+6-3+2=21
c) = -17+11-8-5+9=-10
d) = 23+14-15-11+8=19
5.11
a) -18
b) -44
c) -26
d) -41
3+2-5+4=4
16+6-3+2=21
-17+11-8-5+9=-10
23+14-15-111+8=19
2.
-18
-44
-26