Rozwiąż.
A) -6,2:3,1-(-2,1x10) =
B) 2 x3 [ 3 1/4 - ( 3,75)] x 3,5 =
D) 3 x (-10 )2 + (-3)3 =
E) -9 x ( -8) - 5 x (-10 do potęgi drugiej) =
F) (-0,2)x(-100)-4 1/2 x 2/3 =
G) (-2,7-3:10)3 x (-1)
H) 2+ (-4)x(-20)
I) (-10 X (1 1/5 - 5,5 )
J) ( - 7 X (-10 do potęgi 2) - (-7)
K) 2,5 x (3,2 - 0,8) pod tym jest taka kreska i pisze -2
L) (-2,6): 0,26 + 1/2 x 8 do potegi 2
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a)-2-(-21)=-2+21=19
b)6[3,25-3,75)x3,5=6x(-0,5)x3,5=-10,5
d)-60+(-9)=-69
e)72-5x100=72-500=-428
f)20-3=17
g)(2,7-0,3)x3x(-1)=2,4x3x(-1)=-7,2
h)2+80=82
i)-10x(1,2-5,5)=-10x(-4,3)=43
j)(-7x100)+7=-700+7=-693
k)2,5x2,4/-2= 6/-2=-3
l)-10+0,5x64=-10+32=22
A) -6,2:3,1-(-2,1x10) = -2+21=19
B) 2 x3 [ 3 1/4 - ( 3,75)] x 3,5 = 6[15/4-15/4)]*3,5= 6*3,5=21
C) 3 x (-10 )2 + (-3)3 = 3* (-20)+(-9)= -60-9=-69
D) -9 x ( -8) - 5 x (-10)² = 72-5(-10)²=72-5*100=72-500= -428
E) (-0,2)x(-100)-4 1/2 x 2/3 = -1/5*(-100)-9/2*2/3= 20-3=17
F) (-2,7-3:10)3 x (-1)= (-2,7-0,3)3*(-1)= -9*(-1)= 9
G) 2+ (-4)x(-20)= 2+80=82
H) (-10 X (1 1/5 - 5,5 ) = (-10*(6/5-11/2)=(-10*(-43/10)=43
I) ( - 7 X (-10 )² - (-7)= -7*100+7=-700+7= -693
J) 2,5 x (3,2 - 0,8) 2,5*2,4 6
-------------------- = ---------- =----= -3
-2 -2 -2
K) (-2,6): 0,26 + 1/2 x 8²= -13/5:13/50+1/2*64=-13/5*50/13+32= -10+32=22