Question

Bài 1:   

a) 23,5 x 6,7 + 16,5 x 6,7 + 7,5 

Answer 1

\(=6.7\left(23.5+16.5\right)+7.5=6.7\cdot40+7.5=275.5\)

Answer 2

\(23,5\times6,7+16,5\times6,7+7,5\\ =6,7\times\left(23,5+16,5\right)+7,5\\ =6,7\times40+7,5\\ =268+7,5\\ =275,5\)

Answer 3

a) 23,5 x 6,7 + 16,5 x 6,7 + 7,5 

=157,45+110,55+7,5

=275,5

Answer 4

=6,7(23,5+16,5)+7,5

=6,7 x 40+7,5

=275,5

Answer 5

275,5 nhé

Answer 6

Dễ mà🥰