OK, let's work through this together. We're starting with 950 and we're going to multiply it by 25, which means we add 950 to itself 25 times.
Step 1: 0 + 950 = 950
Step 2: 950 + 950 = 1900
Step 3: 1900 + 950 = 2850
Step 4: 2850 + 950 = 3800
Step 5: 3800 + 950 = 4750
Step 6: 4750 + 950 = 5700
Step 7: 5700 + 950 = 6650
Step 8: 6650 + 950 = 7600
Step 9: 7600 + 950 = 8550
Step 10: 8550 + 950 = 9500
Step 11: 9500 + 950 = 10450
Step 12: 10450 + 950 = 11400
Step 13: 11400 + 950 = 12350
Step 14: 12350 + 950 = 13300
Step 15: 13300 + 950 = 14250
Step 16: 14250 + 950 = 15200
Step 17: 15200 + 950 = 16150
Step 18: 16150 + 950 = 17100
Step 19: 17100 + 950 = 18050
Step 20: 18050 + 950 = 19000
Step 21: 19000 + 950 = 19950
Step 22: 19950 + 950 = 20900
Step 23: 20900 + 950 = 21850
Step 24: 21850 + 950 = 22800
Step 25: 22800 + 950 = 23750

So, 950*25 = 23750