Answer:
Carter is correct. The answer is 500
Explanation:
500 times 800 is 400,000 or you could just divide each of them and see which ones correct. Im not sure how to explain the dividing part since it is long division but i know that with 500 times 800 you could do 8 times 5 then add the 4 zeros thats behind 500 and 400. So you did 8 times 5 and put 40 then added the 4 zeros and you end up with 400,000.