Question

4) Calculati, ţinând cont de ordinea efectuării operațiilor:
a) (7+34)-(5+5.4)
b) -3 [2-(-6) (-97-2: [6-(-8)]=
c) [(-5). (1-4)': (+3-8)': (-5)" =
d) (-25: (-5)+27: (-9]: 3 =
e) [(-3): 32 +2:(-5)]: 13+(11)=
1) [/-3° +(-3)-(-3)+(-2)(4-0)]: (-3) =​

Answer 1

a) (7+12)-(5+20)= 19-25=-6

b)-3•[2-36:(-9)]-2•(6+8)= -3•(2+4)-2•14= -3•8-28= -24-28=-52

c)[(-5)^2 •(-5)^4 • (-5)^3]^5 : (-5)^43=

(-5)^ [(2+4+3)•5-43] = (-5)^ (9•5 -43) = (-5)^2= 25

d)(5-3)•3= 6

e) (-3-10):13+1=-1+1 =0

f)[|-9-27|+3+(-2)•(-2)]:(-3) = (36+3+4):3= 43:3= 14,2(6)