Question

Calculați:
a) (-3)+(-7)+(-11)-(-21)+(-3)-(-3)-(-1)
b) -(-7)-9-20)+(-3+11-21
c) 5·(-6)-4·(-2)+6.(+7)-3·(-15)
d) 100:(-50)·4-(-7)·(-4):(-28)-15
e) -3³-(-2²)+1- 5- 0-(-1)³
f) 5³·5:(-25)-(2·3):(-6+16³:(-8)³

Answer 1

a) =-3-7-11+21-3+3+1=
=-21+21+1=1
b) =7-9-20-3+11-21=
=-22+8-21=-14-21=-35
c) =-30+8+42+45=-22+87=65
d)=(-2)×4-28:28-15=
=-8-1-15=-24
e)=-27-4-4+1=
=-34
f)=5^(3+1):(-1)×5^2-6:(-6)+(2^4)^3:(-1)×(2^3)^3=
=-5^4:5^2+1-2^12:2^9=
-5^(4-2)+1-2^(12-9)=
=-5^2+1-2^3=-25+1-8=-32