Question

Explain how knowing 50x4=200 helps you find 500x400

Answer 1

200,000

Explanation:

50 x 4 = 200. Add the zeros from the new sum so 3 new zeros and add the zeros on to 200.

This might be wrong but oh well :)

Answer 2

Explanation:

50 times 4=200

50 times 40=2,000

500 times 40=20,000

500 times 400=200,000

see the pattern you just adding one more zero each time