Номер 1280

1) (14,548 + 12,835) – 4,548 = (14,548 – 4,548) + 12,835 – 10 + 12,835 = 22,835;

2) 9,37 – 2,59 – 2,37 = (9,37 – 2,37) – 2,59 = 7 – 2,59 = 4,41;

3) (7,132 – 1,132) – 5,13 = 6 – 5,13 = 0,87;

4) 12,7 – 3,8 – 6,2 = 12,7 – (3,8 + 6,2) = 12,7 – 10 = 2,7.