Odpowiedź:
zad 9
(-1)+(-2)+(-3)+(-4)+(-5)+(-6)+7+6+5+4+3+2+1= 1
(-6)+(-7)+(-8)+16+17+18= 30
(-1)+2+(-3)+4+(-5)+6+(-7)+8+(-9)+10= 5
zad 10
1691+(-749)= 942
(-1691)+749= -942
(-1691)+(-749)= -2440
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Verified answer
Odpowiedź:
zad 9
(-1)+(-2)+(-3)+(-4)+(-5)+(-6)+7+6+5+4+3+2+1= 1
(-6)+(-7)+(-8)+16+17+18= 30
(-1)+2+(-3)+4+(-5)+6+(-7)+8+(-9)+10= 5
zad 10
1691+(-749)= 942
(-1691)+749= -942
(-1691)+(-749)= -2440