How can you use mental math to multiply 800 x 5?

Answer 1

8*5=40
40 add in two zeroes
to get 4000

Answer 2

Just multiply 8 and 5 you will get 40 when you add two zeros you get 4000.Check your answer on paper, If you wish to

Answer 3

How can you use mental math to multiply 800 times 5

Answer 4

8x5=40
and then add two zeroes to the end of 40 =4000

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Answer 5

8x5=40
and then add two zeroes to the end of 40 =4000

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Answer 6

My name is Jeff.

Answer 7

Well, you don't have to use mental math. You can just multiply.