1 answer:
            
              
              
                
                
1000 times 10 is 10,000.
Here's a trick:
When multiplying by 10's, 100's, 1000's, 100000's, etc., just had all the zeros together and keep the 1.
So 1000 (3 zeros) times 10 (1 zero) = 10,000 (four zeros)
Happy to help!
 
                                
             
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