Alright, let's solve this math problem step by step. First, we have the number 964. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 25. So, we're going to take the number 964 and add it to itself 25 times.
Step 1: 0 + 964 = 964
Step 2: 964 + 964 = 1928
Step 3: 1928 + 964 = 2892
Step 4: 2892 + 964 = 3856
Step 5: 3856 + 964 = 4820
Step 6: 4820 + 964 = 5784
Step 7: 5784 + 964 = 6748
Step 8: 6748 + 964 = 7712
Step 9: 7712 + 964 = 8676
Step 10: 8676 + 964 = 9640
Step 11: 9640 + 964 = 10604
Step 12: 10604 + 964 = 11568
Step 13: 11568 + 964 = 12532
Step 14: 12532 + 964 = 13496
Step 15: 13496 + 964 = 14460
Step 16: 14460 + 964 = 15424
Step 17: 15424 + 964 = 16388
Step 18: 16388 + 964 = 17352
Step 19: 17352 + 964 = 18316
Step 20: 18316 + 964 = 19280
Step 21: 19280 + 964 = 20244
Step 22: 20244 + 964 = 21208
Step 23: 21208 + 964 = 22172
Step 24: 22172 + 964 = 23136
Step 25: 23136 + 964 = 24100

So, 964*25 = 24100