Răspuns :
Răspuns:
Explicație pas cu pas:
17
a)2-5+10-6=12-11=1
b)13-9=4
c)-6+11-2+6-2=11-4=7
d)8-11=-3
e)60-100=-40
f)210-50=160
18
a)-4-2+3+6=-6+9=3 A
b)-57+14=-43 A
c)124-65=59 F
d)17-2+4=19 F
e)29-8-24=-3 A
f)7+2=9 F
19
-94-17+52=-111+52=-59
b)-6-(2-9)=-6+7=1
c)77-204-230+357=434-434=0
d)5-[2-(1+3)]-6=5+1-6=0