Question

Tính nhanh

36x28+36x82+64x64+64x41

Answer 1

36( 28+82 ) + 64 ( 64+41 )

= 36( 28 + 82 + 128 + 82 )

=36 x 320 = 11520

Answer 2

=36x(28+82)+64x(64+41)

=36x100+64x100

=360+640

=1000

Answer 3

36 x 28 + 36 x 82 + 64 x 64 + 64 x 41

= 36 x ( 28 + 82 ) + 64 x ( 64 + 41 )

= 36 x 110 + 64 x 105

= 3960 + 6720 

= 10680

Answer 4

Tính nhanh

   \(\text{36 x 28 + 36 x 82 + 64 x 64 + 64 x 41}\)

\(=36\text{ x }\left(28+82\right)+64\text{ x }\left(64+41\right)\)

\(=36\text{ x 110 + 64 x 105 }\)

\(\text{=36 x 100 + 36 x 10 + 64 x 100 + 64 x 5}\)

\(=3600+360+6400+320\)

\(=3960+6720\)

\(=10680\)