Solve whats contained in the parenthesis first.
(10x6)+(34x2)
I'm going to take a lenghty route here for explanatory reasons.
Multiplication is the same as addition done a number of times.
10 added 6 times, and 34 added twice
(10+10+10+10+10+10)+(34+34)
or
Six added 10 times and 2 added 34 times.
(6+6+6+6+6+6+6+6+6+6)
plus
(2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2)
Either way you get.
(60)+(68)
You can now remove the parenthesis.
60+68 = 128