Question

 Tính nhanh: a) 136 x 2 + 136 x 7 + 136 ............................................................... ................................................................ ................................................................ ............................................................... b) 3465 x 9 x (72 - 8 x 9) ................................................................ ................................................................ ........................................................

Answer 1

13600

0

Answer 2

a) = 136 x 2 + 136 x 7 + 136 x 1

= 136 x ( 2 + 7 + 1 )

= 136 x 10 

= 1360

b) = 3465 x 9 x 0 

= 0

Answer 3

a) = 136 x 2 + 136 x 7 + 136 x 1

= 136 x ( 2 + 7 + 1 )

= 136 x 10 

= 1360

b) = 3465 x 9 x 0 

= 0