Calcule 85 - (-5)2 + 31 + 40 + 2-1.
85-(-5)+2+31+40+2-1
85+5=90
90+2=92
92+31=123
123+40=163
163+2=165
165-1=164
85 + 5 + 2 + 31 + 40 + 2 - 1
92 + 31 + 41
92 + 72 =
164
