Oblicz w pamięci : a ) 6,4 + 2,1 = 1,6 +3,4 = 2,7+1,2= b ) 5,23+2,6= 2,45 + 0,4= 4,2+0,24= c ) 7,6-2,3= 8-1,6= 3,72-0,2= d ) 2,4-0,04= 5,92-2,11= 4,3-1,24= e ) 3,28+2,6= 4,2-1,05= 4,36+0,04= f ) 2,52-1,2= 6-0,98= 16,1 -15,9= DAJE NAJ :D
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a). 8,5; 5; 3,9;
b). 7,83; 2,85; 4,44;
c). 5,3; 6,4; 3,52;
d). 2,396; 3,81; 3,076;
e). 5,88; 3,15; 4,40;
f). 1,32; 5,02; 0,2;
8,5
5
3,9
7,83
2,85
4,44
5,3
6,4
3,52
2,396
3,81
3,076
5,88
3,15
4,40
1,32
5,02
0,2