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b)6-(-7)x(-2) 6-14
----------------- = --------- =-8/-4=2
-4 -4
c) (-2-4)x(-6):(-3) do pot. drugiej=(-6)x(-6):9=36/9=4
d) (-3)x(-2-10)-5 (-3)x(-12)-5 36-5
------------------ = ------------------- = --------- = -31/2= -15 1/2
7-9 -2 -2
e) (-2) do pot. trzeciej+45:(-3 do pot. drugiej)= -8+45:9= -8+5= -3
f) 15-(-2)x4 5-2 15+8
------------- + --------- = ----------- +3/-1=-23/7+(-3/1)=-23/7-21/7=-44/7=6 2/7
-11+4 2-3 -7
g) 1-4
(-2) x ----------= -2 x (-3/4)=6/4=1 2/4= 1 1/4
4
h) 12-20
---------- x 3=-8/2 x 3=-24/2=-12
2
i) -8+4 6
-------- x ----------- = -4/3 x6/2= -24/6 =-4
3 -1+3