Вправи 301 - 400 » 342

9 • 6 – 14 = 54 – 14 = 40; 9 • 5 + 15 = 45 + 15 = 60; 9 • 7 + 18 = 63 + 18 = 81; 9 • 9 – 23 = 81 – 23 = 58; 80 – 9 • 4 = 80 – 36 = 44; 67 – 9 • 2 = 67 – 18 = 49; 9 • 3 – 27 = 27 – 27 = 0; 9 • 8 – 34 = 72 – 34 = 38.