Question

tính nhanh:19x64+76x34

Answer 1

19*64+76*34

=19*64+19*4*34

=19*64+16*136

=19*(136+64)

=19*200

=3800

Answer 2

19*64+76*34=19*64+19*4*34 =19 * 64+1 6* 136 =19* (136 + 64) = 19 * 200 =3800

Answer 3

19 x 64 + 76 x 34

=19 x 64 + (19 x 4) x 34 

=19 x 64 + 19 x 136 

=19x(136 + 64) 

= 19x200

 =3800

Answer 4

sai bet

Answer 5

19.64+76.34

=19.64+19.4.34

=19.64+16.136

=19.(136+64)

=19.200

=3800