Answer: 2,730
Explanation:
Explained in mental math proccess:
In 455, the one value will be multiplied by 6. 5x6= 30.
In 455, the tens value will be multiplied by 6. 50x6= 300.
In 455, the hundreds value will be multipled by 6. 400x6= 2,400.
Find the sums of all products multiplied by 6. 30+300+2,400= 2,730.
455x6= 2,700