Question

A 2009 by 2009 square has its length decreased by 50 and its width increased by 50. By how much does its area change?

Thank you for your help!
Ms. Sue
2009 * 2009 = 4,036,081 square units

2,059 * 1,959 = ?
hi
2059 × 1959 =
4033581
2009 x 2009 = 4036081
4036081 - 4033581 = 2500