The value of the given expression is 1170.
Important information:
We have,
[tex]3\times 390[/tex]
The number 390 can be written as [tex]400-10[/tex]. So,
[tex]3\times 400=1200[/tex]
[tex]3\times 10=30[/tex]
Now, subtract 30 from 1200.
[tex]1200-30=1170[/tex]
Thus, the value of the given expression is 1170.
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