oblicz w pamięci:
-33+44=
16-60=
-30-(-50)=
0,2 -0,7=
-1-(-4\7)=
-0,75+1\4=
-3 1\9 - (41\17)=
-2 14\15 +0,2)=
2,66 + (-2 1\3)=
4,08 - (-3,275)=
-2 1\3 - (-3,8)=
- 14,2 - 7,87=
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a. 11
b.-44
c.20
d.-0,5
e. -3/7
f.-0,5
g.-5 80/153
h.-2 11/15
i.49/150
j.7,355
k.1 7/15
l.-22,07
-33+44=11
16-60=-44
-30-(-50)=-30+50=20
0,2 -0,7=-0,5
-1-(-4\7)=-1 + 4/7=3/7
-0,75+1\4=-3/4+1/4=-2/4
-3 1\9 - (41\17)=
-2 14\15 +0,2)=- 22/30
2,66 + (-2 1\3)=0,33
4,08 - (-3,275)=7,305
-2 1\3 - (-3,8)=2 4/30
- 14,2 - 7,87=-22,07