9 * 8;
8 * 8;
7 * 7;
64 : 8;
56 : 8;
72 : 8;
96 − 56 : 8;
21 : 3 + 18;
40 − 15 : 5;
5 * 2;
3 * 9;
2 * 6;
36 : 4;
27 : 3;
18 : 2.
9 * 8 = 72;
8 * 8 = 64;
7 * 7 = 49;
64 : 8 = 8;
56 : 8 = 7;
72 : 8 = 9;
96 − 56 : 8 = 96 − 7 = 89;
21 : 3 + 18 = 7 + 18 = 25;
40 − 15 : 5 = 40 − 3 = 37;
5 * 2 = 10;
3 * 9 = 27;
2 * 6 = 12;
36 : 4 = 9;
27 : 3 = 9;
18 : 2 = 9.