Question

tính nhanh 

45 x 25 x 32 x 1,25 

Answer 1

   45 . 25 . 32 . 1,25

= 45 . 25 . (32 . 1,25)

= 45 . 25 . 40

= 45 . (25 . 40)

= 45 . 1000

=45000

Answer 2

45 x 25 x 32 x 1,25 = 45 x 25 x 4 x 8 x 1, 25 = 45 x 100 x 8 x 1,25 = 45 x 8 x 1, 25 x 100 = 45 x 8 x 125 = 45 x 1000 = 45000

Answer 3

=45000 nhé

Answer 4

= 45 x  25 x ( 32 x 1,25 )

= 45x25x40

=45 x (25x40)

=45x1000

= 45000 nha

HT

 kcho tui đc ko 

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