Вычислите:
1) (15-30)-(10-20);
2) (40-70)-(15-45);
3) (1-19)-(31-41);
4) (-45+10)-(-8-0).Решите. 6 класс
1) (15-30)-(10-20);
2) (40-70)-(15-45);
3) (1-19)-(31-41);
4) (-45+10)-(-8-0).Решите. 6 класс
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Answers & Comments
2) (40-70)-(15-45)=-30-(-30)=-30+30=0
3) (1-19)-(31-41)=-18-(-10)=-18+10=-8
4) (-45+10)-(-8-0)=-35-(-8)=-35+8=-27