Question

Trả lời giúp mình câu 2,05.4,78+2,05.5,22

Answer 1

\(=2,05\times\left(4,78+5,22\right)\\ =2,05\times10\\ =20,5\)

Answer 2

\(2,05\cdot4,78+2,05\cdot5,22\)
\(=2,05\cdot\left(4,78+5,22\right)\)
\(=2,05\cdot10\)
\(=20,5\)

Answer 3

2,05.4,78+2,05.5,22

= 2,05.(4,78+5,22)

= 2,05.10

=20,5

Answer 4

2,05.4,78+2,05.5,22

=2,05.(4,78+5,22)

=2,05.10

=20,5

Answer 5

\(2,05.4,78+2,05.5,22\)

\(=2,05.\left(4,78+5,22\right)\)

\(=2,05.10\)

\(=20,5\)

Answer 6

\(2,05\times4,78+2,05\times5,22\\ =2,05\times\left(4,78+5,22\right)\\ =2,05\times10\\ =20,5\)