Odpowiedź:
a)
9 : 2 = 4 r 1, bo 4 * 2 + 1 = 8 + 1 = 9
30 : 7 = 4 r 2, bo 4 * 7 + 2 = 28 + 2 = 30
16 : 3 = 5 r 1, bo 5 * 3 + 1 = 15 + 1 = 16
b)
52 : 6 = 8 r 4, bo 8 * 6 + 4 = 48 + 4 = 52
80 : 9 = 8 r 8, bo 8 * 9 + 8 = 72 + 8 = 80
69 : 9 = 7 r 6, bo 7 * 9 + 6 = 63 + 6 = 69
97 : 9 = 10 r 7, bo 10 * 9 + 7 = 90 + 7 = 97
