52 : 4
90 : 6
75 : 3
100 : 4
70 : 5
63 : 9 * 13
24 : 6 * 18
72 : 9 * 12
56 : 8 * 11
45 : 9 * 14
52 : 4 = (40 + 12) : 4 = 40 : 4 + 12 : 4 = 10 + 3 = 13
90 : 6 = (60 + 30) : 6 = 60 : 6 + 30 : 6 = 10 + 5 = 15
75 : 3 = (60 + 15) : 3 = 60 : 3 + 15 : 3 = 20 + 5 = 25
100 : 4 = (80 + 20) : 4 = 80 : 4 + 20 : 4 = 20 + 5 = 25
70 : 5 = (50 + 20) : 5 = 50 : 5 + 20 : 5 = 10 + 4 = 14
63 : 9 * 13 = 7 * 13 = 7 * (10 + 3) = 7 * 10 + 7 * 3 = 70 + 21 = 91
24 : 6 * 18 = 4 * 18 = 4 * (10 + 8) = 4 * 10 + 4 * 8 = 40 + 32 = 72
72 : 9 * 12 = 8 * 12 = 8 * (10 + 2) = 8 * 10 + 8 * 2 = 80 + 16 = 96
56 : 8 * 11 = 7 * 11 = 7 * (10 + 1) = 7 * 10 + 7 * 1 = 70 + 7 = 77
45 : 9 * 14 = 5 * 14 = 5 * (10 + 4) = 5 * 10 + 5 * 4 = 50 + 20 = 70
Ответ:
52 : 4 = 13
90 : 6 = 15
75 : 3 = 25
100 : 4 = 25
70 : 5 = 14
63 : 9 * 13 = 91
24 : 6 * 18 = 72
72 : 9 * 12 = 96
56 : 8 * 11 = 77
45 : 9 * 14 = 70