Вправи 502 - 600 » 588
37 – 7 + 300 = 30 + 300 = 330 700 + (45 – 38) = 700 + 7 = 707 100 + (78 – 8) = 100 + 70 = 170
37 – 7 + 300 = 30 + 300 = 330 700 + (45 – 38) = 700 + 7 = 707 100 + (78 – 8) = 100 + 70 = 170