zadanie18
a -2 2/9 - (-1 1/3 ) -5 5/18 - (-2 1/6 )=
b -12-( 2,5)- 1 1/3 - 4/5 - (-3 5/12)=
c -3,75 - (8,125) - 6,001 - (-5,25)=
d 35,8 - (-11 1/5 ) - (-12,75) - 47 3/4 =
zadanie 19
różnice liczb -45 2/3 i 4 1/3 zwiększ o liczbę przeciwną do -3,5
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a. -2 2/9 + 1 1/3 -5 5/18+2 1/6= -2 4/18+1 6/18 -5 5/18 +2 3/18=
=3 9/18 -7 9/18= -4
b.-12 -2 1/2 -1 1/3 -4/5 +3 5/12= -12 -2 30/60 -1 20/60 -48/60 +3 25/60=
=-15 29/30