Positive 70, since you subtract the two numbers and if the positive number is bigger, the answer will be positive. Negative larger, negative answer.
It is: 90+(-20) = 70
65 + 65 + 65 + 90 + 90 + 90 + 90 + 50 + 50 + 50 + 50 + 50 + 50 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 995
180
-20
The result of the equation - 20 plus 90 plus 60 plus 80, is found as follows; 20 + 90 + 60 + 80 = ( 20 + 90 ) + 60 + 80 = 110 + ( 60 + 80 ) = 110 + 140 = 250 Answer = 250
8100 plus 90 plus 72 is equal to 8,262.
70
the sum of 80 + 20 + 90 + 10 = 200
32+90+16=138
It is: 80+90+60 = 230
The sum of the equation - 990 + 880 +90 +790 +690 + 20, is found as follows;990 + 880 +90 +790 +690 + 20= (990 + 880) + (90 +790) + (690 + 20)= ( 1870 ) + (880 ) + ( 710 )= 3460Answer = 3460
146
125 + 25 - 90 + 35 - 20 = 5