Question

Ex 4 va rog mult di suflet

Answer 1

4.a)(-3)+(-7)+(-11)-(-21)+(-3)-(-1)=(-4)+(-1)+(+2)=3++2=+1

b)-(-7-9-20)+(-3+11-21)=(+2-20)+(-3+-10)=-18++7=+11

c)5×(-6)-4×(-2)+6×(+7)-3×(-15)=(-30)--8+

42-45=+22+3=+19

d)100:(-50)×4-(-7)×(-4):(-28)-15=-2×4-28:23=-8-1,21=+6,79

e)-3^3-(-2)^3+1^8-5^0-0^4-(1)^3=-27-4+1-0-0-1=+23+1--1=+22-1=-23

f)5^3×5^8:(-25)^5-(2^5×3^5):(-6)^5+16^3(-8)^3=5^3+8:-25-(32×243)÷6+256÷512=5^11:-25-776:6+0,5=55:-25-129+0,5=-2,2-129,5=+127,3.Sper că te-am ajutat!!