Question

Ex plane how knowing 50 x 4 = 200 helps you find 500 x 400

Answer 1

500×400=

5×4=20

=20+(4 of zero)0000

200000

=200,000

Answer 2

Explanation:

if you know 50*4=200, you must also know that 50*10=500 and that 4*100=400 so 500*400= 50*10*4*100

multiplication is comutative so

50*4*10*100=200*1,000= 200, 000