Question

Tính: [(315+372) x3 + (372 + 315) x 7] : 26 x 13 + 74 x 14=

Answer 1

= [ 687 x 3 + 687 x 7 ] : 26 x 13 + 74 x 14 

= [ 687 x ( 3 + 7 ) ] : 26 x 13 + 74 x 14 

= [ 687 x 10 ] : 26 x 13 + 74 x 14 

= 6870 : 26 x 13 + 74 x 14

= 3435 + 1036

= 4471

Answer 2

= [ 687 x 3 + 687 x 7 ] : 26 x 13 + 74 x 14 

= [ 687 x ( 3 + 7 ) ] : 26 x 13 + 74 x 14 

= [ 687 x 10 ] : 26 x 13 + 74 x 14 

= 6870 : 26 x 13 + 74 x 14

= 3435 + 1036

= 4471

Answer 3

= [ 687 x 3 + 687 x 7 ] : 26 x 13 + 74 x 14 

= [ 687 x ( 3 + 7 ) ] : 26 x 13 + 74 x 14 

= [ 687 x 10 ] : 26 x 13 + 74 x 14 

= 6870 : 26 x 13 + 74 x 14

= 3435 + 1036

= 4471