Частина 2. Номер 156

530 + 400 = 930;

760 + 200 = 960;

760 – 300 = 460;

650 – 200 = 450;

530 + 40 = 570;

760 + 20 = 780;

480 – 20 = 460;

650 – 30 = 620.