Question

1.)Square of 405
2.)8+5+5+4=
3.)1/2×8+5×4=

Answer 1

405² = 164025
8+5+5+4 = 22
1/2×8+5×4 = 24

Answer 2

◆Square of 405:

=164025

◆8+5+5+4

=22

◆1/2×8+5×4

=4+20

=24

HOPE IT WILL HELP YOU.....