Alright, let's solve this math problem step by step. First, we have the number 425. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 10. So, we're going to take the number 425 and add it to itself 10 times.
Step 1: 0 + 425 = 425
Step 2: 425 + 425 = 850
Step 3: 850 + 425 = 1275
Step 4: 1275 + 425 = 1700
Step 5: 1700 + 425 = 2125
Step 6: 2125 + 425 = 2550
Step 7: 2550 + 425 = 2975
Step 8: 2975 + 425 = 3400
Step 9: 3400 + 425 = 3825
Step 10: 3825 + 425 = 4250

So, 425*10 = 4250