Explain how finding 7 x 20 is similar to finding 7 x 2000. then find each product.

The first thing we are going to do in this case is to find the following product:
 
 We then have to multiply:
 
 Then, we have the following product:
 
 Rewriting the product we have:
 
 Then, using commutative property we have:
 
 Substituting values:
 
 When you multiply by 100, you only have to add two zeros to the right.
 We have then:
 
 
 

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