Oblicz.
a) 4 2/3 - 3 1/3 * 2 1/2
b) - 1,2 : 0,3 * ( - 2/3)
c) - 3/7 - 1 11/14 + 2 3/14
a) 4,66-3,33*2,5=4,66-8,325=-3,665
b)-1,2 : 0,3 * (-0,66)=-1,2:(-0,198)=6,06≈6
c) -0,42-1,78+2,21=0,01
Licze na naj. ;)
a) 4 2/3 - 3 1/3 * 2 1/2= 15/3 - 10/3 * 5/2= 15/3 - 25/3= -10/3= -3 1/3
b) -1,2 : 0,3 * ( -2/3 )= -4 * (-2/3)= -4/1 * (-2/3)= 8/3= 2 2/3
c) -3/7 - 1 11/14 + 2 3/14= -6/14 - 1 11/14 + 1 17/14= -1 17/14 + 1 17/14= 0
Myśle, że pomogłem ;)
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a) 4,66-3,33*2,5=4,66-8,325=-3,665
b)-1,2 : 0,3 * (-0,66)=-1,2:(-0,198)=6,06≈6
c) -0,42-1,78+2,21=0,01
Licze na naj. ;)
a) 4 2/3 - 3 1/3 * 2 1/2= 15/3 - 10/3 * 5/2= 15/3 - 25/3= -10/3= -3 1/3
b) -1,2 : 0,3 * ( -2/3 )= -4 * (-2/3)= -4/1 * (-2/3)= 8/3= 2 2/3
c) -3/7 - 1 11/14 + 2 3/14= -6/14 - 1 11/14 + 1 17/14= -1 17/14 + 1 17/14= 0
Myśle, że pomogłem ;)