\(=35\left(34+38\right)+65\left(75+45\right)\)
\(=35\cdot72+65\cdot120\)
\(=10320\)
c) 35.34 + 35.38 + 65.75 + 65.45
= 35.(34 + 38) + 65.(75 + 45)
=35. 72 + 65.120
= 2520 + 7800
= 10320
c, 35.34 + 35.38 + 65.75 + 65.45
= 35.(34 + 38) + 65.(75 + 45)
= 35.72 + 65.120
= 2520 + 7800
= 10320