October 2018 2 34 Report

a) (-100)*(8/25)=-800/25 = - 32

b) 1 i 2/3 *(-6/25)= 5/3*(-6/25)= 1/1*(-2/5) = -2/5

c) (-2i2/5*(-3i3/4)= (-12/5)*(-15/4)= (-3/1)*(-3/1)= 9/1=9

d) (-9,45)*0,28= -2,646

e) 0,04 * (-0,27)= - 0,0108

f) (-3,6)*4/9 = (-36/10) *4/9 = (-4/5) * 2/1 = 8/5 = 1i3/5

g) (-2,1) *(-4i2/7)= (-21/10)*(-30/7)= (-3/1)*(-3/1)= 9/1=9

h) ( -7/8):(-5,6)=( -0,875) : (-5,6) = 0,15625

i) 9/10: (-3/4) = 9/10 *(- 4/3) = 3/5*(-2/1) = -6/5 = -1 i 1/5

J) (-1i1/2):(-0,06)= (-1,5):(-0,06)= 25

k) (-2i2/3): 1,2= (-8/3):12/10= (-8/3)*10/12= (-2/3)*10/3= -20/9=-2i2/9

Powiecie mi czy mam dobrze? Z góry bardzo dziękuje <3!


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