Question

Tính thuận tiện :

27,34+3,45+5,66+3,55

Answer 1

=(27,34+5,66)+(3,45+3,55)=33+7=40

Answer 2

\(27,34+3,45+5,66+3,55\)

\(=\left(27,34+5,66\right)+\left(3,45+3,55\right)\)

\(=33+7\)

\(=40\)

Chúc bạn học tốt~~

Answer 3

27,34+3,45+5,66+3,55

=(27,34+5,66)+(3,45+3,55)

=33+7=40

Answer 4

=(27,34+5,66)+(3,45+3,55)

= 33+7=40

Answer 5

=(27,34+5,66)+(3,45+3,55)

=33+7

=40

Answer 6

Trả lời:

\(27,34+3,45+5,66+3,55\)

\(=\left(27,34+5,66\right)+\left(3,45+3,55\right)\)

\(=33+7\)

\(=40\)

Hok tốt!

Vuong Dong Yet