6 * 9;
9 * 5;
6 * 7;
9 * 3;
42 : 6;
35 : 7;
48 : 8;
54 : 6;
18 : 2 + 7 * 3;
6 * 5 − 24 : 3;
21 : 3 − 35 : 5;
6 * 7 + 6 * 3;
6 * 4;
4 * 8;
8 * 5;
9 * 4;
83 − 65;
17 + 46;
52 + 39;
76 − 28.
6 * 9 = 54;
9 * 5 = 45;
6 * 7 = 42;
9 * 3 = 27;
42 : 6 = 7;
35 : 7 = 5;
48 : 8 = 6;
54 : 6 = 9;
18 : 2 + 7 * 3 = 9 + 21 = 30;
6 * 5 − 24 : 3 = 30 − 8 = 22;
21 : 3 − 35 : 5 = 7 − 7 = 0;
6 * 7 + 6 * 3 = 42 + 18 = 60;
6 * 4 = 24;
4 * 8 = 32;
8 * 5 = 40;
9 * 4 = 36;
83 − 65 = 18;
17 + 46 = 63;
52 + 39 = 91;
76 − 28 = 48.