oblicz w pamięci : a) -12+(-11) -8 1/2+6 -3/4+(-3/4 -50+25 -3 5/7+3/7 -101+(-120) e) -13+5,6 b) -77+42 -6,2+(-2,6) -101+84 -0,75+(-1,3) -106+120 f)-2+1/2 c) -16+3 -0,5+1 1/2 99+(-19) 0,75+(-3/4 -27+31
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a)-23
-2 1/2
-1,5
-25
e)-7,96
b)-35
-8,8
-17
-0,55
14
f)-1 1/2
c)-13
0,5
80,5
0
-4
a) -23
-2,5
-1,5
-25
e) -7,96
b) -35
-8,8
-17
-0,55
14
f) -1,5
c) -13
0,5
80,5333
0
4