oblicz
a) (-13+8)*(-2)=
b)(3-7)*(15-6)=
c) (17-5):(-3)=
d)(-5)*2*(-7)=
e)(-3)*(-2)*(-4)=
f)(-5)*(-2)+6*(-3)=
g)-25:(-2+7)_3=
h)(3-7+2)3=
i)(-4-5+2)2=
oblicz
a)(-1 1/2)2-(-1,62-2,13)
_________________
(2,3-5,3)2
daje 10 punktów za rozwiazanie z obliczeniami daje naj
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a) (-13+8)*(-2)= (-5)*(-2)=10 (bo minus * minus daje +)
b)(3-7)*(15-6)= (-4)*9=(-36)
c) (17-5):(-3)=12:(-3)=(-4)
d)(-5)*2*(-7)=(-10)*(-7)=70
e)(-3)*(-2)*(-4)=6*(-4)=(-24)
f)(-5)*(-2)+6*(-3)= 10+6 *(-3) = 10+(-18) = (-8)
g)-25:(-2+7)_3=(-25):5= (-5)
h)(3-7+2)3=(-6)*3=(-18)
i)(-4-5+2)2=(-3)*2=(-6)
a)(-1 1/2)2-(-1,62-2,13) = (-3) + 1,62 + 2,13 = 0,75
(2,3-5,3)2 = (-6)