Вправи 601 - 750 » 659

Виконай дії: а) 102 + 5 = 100 + 5 = 105; 102 – 5 = 100 – 5 = 95. б) 202 + 100 = 400 + 100 = 500; 202 – 100 = 400 – 100 = 300. в) 103 + 1 = 1000 + 1 = 1001; 103 – 1 = 1000 – 1 = 999. г) 102 • 5 = 100 • 5 = 500; 102 : 5 = 100 : 5 = 20.