Question

35.12+65.13

 

Answer 1

\(35.12+65.13\)

\(=420+845\)

\(=1265\)

Answer 2

\(35\cdot12+65\cdot13\)

\(=35\cdot12+65\left(12+1\right)\)

\(=35\cdot12+65\cdot12+65\)

\(=\left(65+35\right)\cdot12+65\)

\(=100\cdot12+65\)

\(=1200+65\)

\(=1265\)