Математика, срочно :)

Question

Математика, срочно :)

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Answer 1

1=15
2=28
3= -24
4=19
5= -19
6= -28

Answer 2

1) -18+33= 15
2) 31+(-12)= 19
3) 65+(-37)= 28
4) -58+39= -19
5) -49+25= -24
6) 46+(-74)= -28