Номер 1211

1) 2503 – (–831) – (–1169) = 2503 + 831 + 1169 = 4503;
2) –743 – (–395) – (–1043) = –743 + 395 + 1043 = 695;
3) –72,62 – (–51,15) – (–56,47) = –72,62 + 51,15 + 56,47 = 35;
4) 405,2 – (–2,91) – (–6,7) = 405,2 + 2,91 + 6,7 = 414,81.