November 2018 2 79 Report
Oblicz sprytnie:
a) 15-(-11)-15-11
b)-10-7-(-7)-18
c)-5/9 +2/3 +5/9+5/6- 2/3
d)- 2/7+ 3/8- 1/2 +2/7 -1/4 +1/2
e)-1,1+2,2+3,3-5,5+6,6
f)-3,7+2,85+4,7-4,85
g)1 i 1/4 -0,5 - 3/7 - 0,25 + 1 i 1/2
h)-1/8 -1/3+2,5+ 3 i 1/3 -(-0,125)

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