Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
Each bank teller has 10 rolls of coins. Each roll has 25 coins. How many coins do four bank tellers have in all?

### Response:
Each bank teller has 10 x 25 = <<10*25=250>>250 coins.
Therefore, four bank tellers have 250 x 4 = <<250*4=1000>>1000 coins.
#### 1,000