Răspuns :
a)
(-5)+(-7)-(+8)-(-11)-(-19)
-5-7-7+11+19
-19+11+19
-19+30
+11
b)
(-10+15)-[-(-40)+(-25)-(-34)+(-22)]
5-[40-25+34-22]
5-(15+12)
5-27
-22
c)24÷[[30+(-6)×(-5)]÷60+2]+15:[(-3)×(-1)]
24:[30+30)]:60+2]+15:(+3)
24:(60:60+2)+5
24:3+5
8+5
13
d)(-2)⁵
-32
e)
(-3)⁴
81
2.
a)
[(-1)x(-2)]⁵
(+2)⁵
32
b)
orce nr la puterea 0 ne da 1
Sper ca te-am ajutat
(-5)+(-7)-(+8)-(-11)-(-19)
-5-7-7+11+19
-19+11+19
-19+30
+11
b)
(-10+15)-[-(-40)+(-25)-(-34)+(-22)]
5-[40-25+34-22]
5-(15+12)
5-27
-22
c)24÷[[30+(-6)×(-5)]÷60+2]+15:[(-3)×(-1)]
24:[30+30)]:60+2]+15:(+3)
24:(60:60+2)+5
24:3+5
8+5
13
d)(-2)⁵
-32
e)
(-3)⁴
81
2.
a)
[(-1)x(-2)]⁵
(+2)⁵
32
b)
orce nr la puterea 0 ne da 1
Sper ca te-am ajutat
a=-12
b=-5-[-(-65-12)]
=-5+(-77)
=-82
c 24:[(30+30):60+2]+15:3
24:(60:60+2)+15:3
24:(1+2)+15:3
24:(3+15):3
24:(18:3)
24:6
=4
d (-2)x(-2)x(-2)x(-2)x(-2)=-32
e (-3)x(-3)x(-3)x(-3)=81
a=32
b=0
b=-5-[-(-65-12)]
=-5+(-77)
=-82
c 24:[(30+30):60+2]+15:3
24:(60:60+2)+15:3
24:(1+2)+15:3
24:(3+15):3
24:(18:3)
24:6
=4
d (-2)x(-2)x(-2)x(-2)x(-2)=-32
e (-3)x(-3)x(-3)x(-3)=81
a=32
b=0