Частина 2. Номер 116

130 – 50 = 80;

150 – 80 = 70;

80 + 70 = 150;

60 + 50 = 110;

90 + 60 = 150;

40 + 60 = 100;

120 – 50 = 70;

140 – 70 = 70.