1.Efectuati:
a) -3supra4+5supra6=
b) 5supra8-2=
c) -3supra10×(-15 supra 9)=
d)28supra12-35supra15=
e)2supra3÷(-12)=
f) -5supra3+1=
g)5 supra8-3supra4=
h)2:(-1supra4)=
i)-63supra40×64supra27=
j)-2supra5×3=
k)-3supra6-3supra6=
l)-2supra5:1supra10=
Dau coroana celui care raspunde primu
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