The first thing we are going to do in this case is to find the following product:
[tex]7 * 20
[/tex]
We then have to multiply:
[tex]7 * 20 = 140
[/tex]
Then, we have the following product:
[tex]7 * 2000
[/tex]
Rewriting the product we have:
[tex]7 * 20 * 100
[/tex]
Then, using commutative property we have:
[tex](7 * 20) * 100
[/tex]
Substituting values:
[tex](140) * 100
[/tex]
When you multiply by 100, you only have to add two zeros to the right.
We have then:
[tex](140) * 100 = 14000
[/tex]
Answer:
[tex]7 * 20 = 140
(140) * 100 = 14000[/tex]
