Oblicz.
a) –125 –(–29)+(–22) c) (–15)•(–3)•2
b) 25•(–4)+(–72)÷6 d)( –2)•(–2)•(–3)•(–20)
e) [15 + (–3)•(–2)]•[14–(2+5)•2]
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a) -125 -(-29)+(-22) = -125 + 29 - 22 = -118
b) 25 * (-4) + (-72) : 6 = - 100 - 12 = -112
c)(-15)*(-3) *2 = 45 * 2 = 90
d) (-2)*(-2)*(-3)*(-20) = 4 * 60 = 240
e) [ 15 + (-3)*(-2)] * [14-(2+5)*2 ] =
= [15 + 6 ] * [ 14 - 14] =
= 21 * 0 =
= 0
a)-125-(-29)+(-22)=-125+29-22=-147+29=-118
b)25*(-4)+(-72):6=-100-12=-112
c)(-15)*(-3)*2=45*2=90
d)(-2)*(-2)*(-3)*(-20)=4*60=240
e)[15+(-3)*(-2)]*[14-(2+5)*2]=[15+6]*[14-7*2]=21*[14-14]=21*0=0