14 * 6
19 * 4
15 * 6
5 * 20
(48 + 12) : 6
(36 − 27) : 3
80 − 7 * 8
5 * 7 + 65
14 * 6 = (10 + 4) * 6 = 10 * 6 + 4 * 6 = 60 + 24 = 84;
19 * 4 = (10 + 9) * 4 = 10 * 4 + 9 * 4 = 40 + 36 = 76;
15 * 6 = (10 + 5) * 6 = 10 * 6 + 5 * 6 = 60 + 30 = 90;
5 * 20 = 100;
(48 + 12) : 6 = 60 : 6 = 10;
(36 − 27) : 3 = 9 : 3 = 3;
80 − 7 * 8 = 80 − 56 = 24;
5 * 7 + 65 = 35 + 65 = 100.