Question

48x19 + 48x14 + 23x52
tính cách hợp lý

Answer 1

48x19 + 48x14 + 23x52

= 48x( 19+14) + 23x52

= 48x33+23x52

=1584+1196

=2780

Answer 2

=48x(19+14)+23x52
=48x33+23x52
=4x12x33+23x4x13
=4x(12x33+23x13)
=4x(396+299)
=4x695
=2780