Answer:
1+1 x 2x2+6x5 = 35
5*7*6*8 = 1680
Explanation:
Order of operation
1+1 x 2x2+6x5 = 1 + 2*2 + 30 = 1 + 4 + 30 do the multiplication first from left to right
then
1 + 4 + 30 = 5 + 30
5+30 = 35 after doing addition
so
1+1 x 2x2+6x5 = 35
5*7*6*8 = 35*48 = 1680
5*7*6*8 = 1680