50 : 50 * 100 = 1 * 100 = 100;
24 * 10 : 8 = 240 : 8 = 30;
15 * 2 * 100 = 30 * 100 = 3000;
48 : 3 * 10 = 16 * 10 = 160;
25 * 4 * 100 = 100 * 100 = 10000;
100 : 2 : 10 = 50 : 10 = 5;
180 : 2 + 210 * 4 = 90 + 840 = 930;
150 : 3 + 250 * 4 = 50 + 1000 = 1050.