Вправи 101 - 200 » 106-107

6 : 1 = 6 39 : 1 = 39 130 : 1 = 130 1239 : 1 = 1239 11679 : 1 = 11679 107. 49 • 2 – 48 • 2 = (49 – 48) • 2 = 1 • 2 = 2 43 • 2 – 43 • 1 = 43 • (2 – 1) = 43 • 1 = 43 91 : 13 + 11 • 6 = 7 + 66 = 73 1000 + 1000 : 100 – 1 = 1000 + 10 – 1 = 1009 10 000 – 100 : 100 + 1 = 10000 – 1 + 1 = 10000 80 : 16 + 18 : 2 = 5 + 9 = 14