Question

Tính nhanh:

400,40 - 392,34 - 5,40

Answer 1

400,40 - 392,34 - 5,40

= (400,40 - 5,40) - 392,34

= 395 - 392,34

= 2,66

Answer 2

400,40 - 392,34 - 5,40

= (400,40 - 5,40) - 392,34

= 395 - 392,34

= 2,66

At the speed of light

Answer 3

400,40-392,34-5,40

=400,40-5,40-392,34

=395-392,34

=2,66

Answer 4

400,40 - 392,34 - 5,40

= ( 400,40 - 5,40 ) - 392,34

= 395 - 392,34

= 2,66

At the speed of light

Answer 5

400,40 - 392,34 - 5,40

= ( 400,40 - 5,40 ) - 392,34

= 395 - 392,34

= 2,66