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Asterka
a fost răspuns

1. Calculati:
a) (-28+53-42)-(46-19+52) =
b) -91:(+13)-(-4) la puterea a 3a +15=
c) (+13). (-2)-(26).(-1)=
d) 17-12 +(-5).(-4)=
​

1 Calculatia 285342461952 B 91134 La Puterea A 3a 15c 13 2261d 1712 54 class=

Răspuns :

Carinacrina
a) (-28+53-42)-(46-19+52)=
(25-42)- (27+52) =
-17 -79= -96
b). -91:(+13)-(-4)^3+15=
-7-(-64)+15=
-7+64+15=
57+15=72
c) (+13)•(-2)-(26)•(-1)=
-26+26=0
d) |7-12|+(-5)•(-4)=
|-5|+20=
5+20=25

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