Oblicz:
a) (-51) + (-13) + (-19) + (-17) =
b) (-14) + (-60) + (-7) =
c) 7 + (-12) + (-17) + (-7) + 19 =
d) (-16) + (-10) + 14 + (-9) + (+20) =
e) 20 + (-18) + (-16) + (-40) =
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a)(-51) + (-13) + (-19) + (-17) =-51-13-19-17=-100
b) (-14) + (-60) + (-7) =-14-60-7=-81
c) 7 + (-12) + (-17) + (-7) + 19 =7-12-17-7+19=-10
d) (-16) + (-10) + 14 + (-9) + (+20) =-16-10+14-9+20=-1
e) 20 + (-18) + (-16) + (-40) =20-18-16-40=-54
Jest tak Ponieważ jak + stoi przy - to zamienia sie to na - .
Czyli +(- = -
a -100
b -81
c 10
d 23
e -54