Question

2020x16+2020x85-2020

tính nhanh

 

Answer 1

2020 x 16 + 2020 x 85 - 2020

= 2020x ( 16 + 85 -1 )

= 2020 x 100

=202000

Answer 2

=2020x(85+16-1)

=2020x100

=202000

 

Answer 3

\(2020\text{×}16+2020\text{×}85-2020\)

\(=2020\text{×}16+2020\text{×}85-2020\text{×}1\)

\(=2020\text{×}\left(16+85-1\right)\)

\(=2020\text{×}100=202000\)