Question

tính hợp lí

2x7x5x8x9x125

 

Answer 1

2x7x5x8x9x125=630000

Answer 2

= (2 x 5) x (8 x 125) x (7 x 9)

= 10 x 1000 x 63

= 630 000

Answer 3

2x7x5x8x9x125

= (2 x 5) x (8 x 125) x (7 x 9)

= 10 x 1000 x 63

= 630 000

Answer 4

2x7x5x8x9x125=630000