Let's get this math done. We have 995 and we're going to multiply it by 13. This is the same as taking 995 and adding it to itself 13 times.
Step 1: 0 + 995 = 995
Step 2: 995 + 995 = 1990
Step 3: 1990 + 995 = 2985
Step 4: 2985 + 995 = 3980
Step 5: 3980 + 995 = 4975
Step 6: 4975 + 995 = 5970
Step 7: 5970 + 995 = 6965
Step 8: 6965 + 995 = 7960
Step 9: 7960 + 995 = 8955
Step 10: 8955 + 995 = 9950
Step 11: 9950 + 995 = 10945
Step 12: 10945 + 995 = 11940
Step 13: 11940 + 995 = 12935

So, 995*13 = 12935