Question

2,43 . 4,54 + 2,16 . 4,54+ 4,59 . 5,46

Answer 1

 \(\text{2,43 . 4,54 + 2,16 . 4,54+ 4,59 . 5,46 }\)

\(=4,54.\left(2,43+2,16\right)+4,59.5,46\)

\(=\)  \(4,54.\) \(4,59\) \(+4,59.5,46\)

\(=4,59.\left(4,54+5,46\right)\)

\(=4,59.10\)

\(=45,9\)

 

Answer 2

2,43 . 4,54 + 2,16 . 4,54 + 4,59 . 5,46

= 4,54 . (2,43 + 2,16) + 4,59 . 5,46

= 4,54 . 4,59 + 4,59 . 5,46

= 4,59 . (4,54 + 5,46)

= 4,59 . 10

= 45,9