Question

 

Tính nhanh :

4 x 12 x 72 + 6 x 11+ 17 x 16 x3

Answer 1

=4338

Answer 2

4338 nha!

Answer 3

Bằng 4338 nha bn! 

Answer 4

4 x 12 x 72 + 6 x 11 + 17 x 16 x 3

= ( 4 x 12 ) x 72 + 6 x 11 + 17 x ( 16 x 3 )

= 48 x 72 + 6 x 11 + 17 x 48

= 48 x 72 + 17 x 48 + 6 x 11

= 48 x ( 72 + 17 ) + 6 x 11

= 48 x 89 + 66

= 4272 + 66

= 4338

Answer 5

4 . 12 . 72 + 6 . 11 + 17 . 16 . 3

= ( 4 . 12 ) . 72 + 6 . 11 + 17 . ( 16 . 3 )

= 48 . 72 + 6 . 11 + 17 . 48

= 48 . 72 + 17 . 48 + 6 . 11

= 48 . ( 72 + 17 ) + 6 . 11

= 48 . 89 + 66

= 4276 + 66

= 4388