Вправи 502 - 600 » 573-574

100 + 30 + 1 = 131 500 + 20 + 7 = 527 40 + 3 = 43 400 + 3 = 403 80 + 1 = 81 800 + 1 = 801 600 + 30 = 630 600 + 3 = 603 574. 70 – 35 : 5 = 70 – 5 = 65 48 : 8 – 5 = 6 – 5 = 1 5 · (15 : 5) = 5 · 3 = 15 64 + 9 · 4 = 64 + 36 = 100