Oblicz:
a) (-2) - (-7) b) (-14) + (+3) c) (-5) + (+11) d) (-23) + (+8)
(-4) - (-19) (+8) + (-16) (+9+ + (-6) (+17) + (-12)
(-6) + (-10) (-20) + (+15) (-18) + (+20) (-21) + (-23)
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a) -2+7=5
-4+19=15
-6 -10=-16
b)-14 +3= -11
8-16= -8
-20 +15= -5
c)-5 +11= 6
9-6=3
-18+20=2
d)-23 +8= -15
17-12=5
-21 -23= -44
a)(-2)+7=5
(-4)+19=15
(-6)-10=-16
b)(-14)+3=(-11)
(+8)-16=(-8)
(-20)+15=(-5)
c)(-5)+11=6
(+9)+(-6)=(+9)-6=3
(-18)+20=2
d)(-23)+8=(-15)
(+17)-12=5
(-21)-23=(-44)
Mam nadzieję,ze pomogłam :)