Question

Tinh nhanh:273.63+45.37+45.63+273.37

Giup mk nhe!~

 

Answer 1

273.63+45.37+45.63+273.37

=276.(63+37)+45.(37+63)

=276.100+45.100

=27600+4500

=32100

Answer 2

\(=273\left(63+37\right)+45\left(37+63\right)\)

\(=273.100+45.100\)

\(=100\left(273+45\right)\)

\(=100.318\)

\(=31800\)