3rd grade math
posted by Alex .
How can you use mental math to multiply 800 x 5?

3rd grade math 
John
8*5=40
40 add in two zeroes
to get 4000 
3rd grade math 
Benjamin
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

3rd grade math 
Anonymous
How can you use mental math to multiply 800 times 5

3rd grade math 
Caden
8x5=40
and then add two zeroes to the end of 40 =4000
v_v
 
3rd grade math 
Caden
8x5=40
and then add two zeroes to the end of 40 =4000
v_v 
3rd grade math 
JEFFFFFF!!!!!
My name is Jeff.
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