Each bank teller has 10 rolls of coins. Each roll has 25 coins. How many coins do four bank tellers have in all?
Each bank teller has 10 x 25 = 
<gadget id="calculator">10*25</gadget>
<output>250</output>
250 coins.
Thus, four bank tellers have 250 x 4 = 
<gadget id="calculator">250*4</gadget>
<output>1_000</output>
1000 coins.

<result>1_000</result>