Частина 2. Номер 224

5 · 7 + 700 = 35 + 700 = 735;

6 · 10 + 70 = 60 + 70 = 130;

800 – 735 = 65;

900 – 135 = 765;

230 – 180 = 50;

520 – 160 = 360;

410 – 90 · 2 = 410 – 180 = 230;

900 – 90 : 3 = 900 – 30 = 870;

200 – 200 : 2 = 200 – 100 = 100;

300 – 300 : 3 = 300 – 100 = 200;

900 – 300 : 3 = 900 – 100 = 800;

700 + 500 : 5 = 700 + 100 = 800.