Question

Tính nhanh:

\(202.1\cdot6.5+202.1\cdot2.5+2021:10\)

Answer 1

\(202,1.6,5+202,1.2,5+2021:10\)

\(=202,1.6,5+202,1.2,5+202,1\)

\(=202,1.\left(6,5+2,5+1\right)\)

\(=202,1.10\)

\(=2021\)

Answer 2

\(202,1.6,5+202,1.2,5+202,1=202,1.\left(6,5+2,5+1\right)=202,1,10=2021\)

Answer 3

2021

Answer 4

2021

Answer 5

  202,1 x 6,5 + 202,1 x 2,5 + 2021 : 10

= 202,1 x 6,5 + 202,1 x 2,5 +   202,1

= 202,1 x ( 6,5 + 2,5 + 1 )

= 202,1 x            10

=               2021