Question

evaluate 503square without multiplication​

Answer 1

Answer:

(500+3)^2

Step-by-step explanation:

500^2 +3^2 +2(3)(500)

=253009

Answer 2

Answer:

253009

Step-by-step explanation:

(503)^2 = (500+3)^2

            = 500^2 + 3^2 +2*3*500   <using identity i.e. (a+b)^2 = a^2 + b^2 + 2*a*b>

            = 250000+9+300

            = 253009

HOPE IT HELPS