Oblicz.
1/2 + 0,6 - 1/4=
-0,3 + 1/2 - (-3/4) =
-1/4+(-3/4) - 2 całe i 1/2=
0,5 + (-2całe i 1/2)- 1/4 =
1cała i 1/4 + (-3/4) -1/2 =
-1/2 + 0,6 - 1/4 =
-0,3 + 1/2 - (-3/4) =
-1/4 + (-3/4) - 2 całe i 1/2=
-0,5 + (-2całe i 1/2)- 1/4 =
-1cała i 1/4 + (-3/4) -1/2 =
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a) 1/2+0,6-1/4=1/2+6/10-1/4=10/20+12/20-5/20=22/20-5/20=17/20
b) -0,3+1/2-(-3/4)=0,3+0,5+0,75=0,8+0,75=1,55
c) -1/4+(-3/4)-2 1/2=-1/4-3/4-2 1/2=-1-2 1/2=-3 1/2
d) 0,5+(-2 1/2)-1/4=1/2-2 1/2-1/4=-2-1/4=-2 1/4
e) 1 1/4+(-3/4)-1/2=1 1/4-3/4-1/2=2/4-1/2=1/2-1/2=0
Nie jestem pewna co do tego e) przykładu ^^
Ale i tak liczę na NAJ ...