The result of the equation - 70 plus 90 plus 60 plus 80, is found as follows; 70 + 90 + 60 + 80 = ( 70 + 90 ) + 60 + 80 = 160 + ( 60 + 80 ) = 160 + 140 = 300 Answer = 300
The result of the equation - 80 plus 90 plus 60 plus 80, is found as follows; 80 + 90 + 60 + 80 = ( 80 + 90 ) + 60 + 80 = 170 + ( 60 + 80 ) = 170 + 140 = 310 Answer = 310
The result of the equation - 60 plus 90 plus 60 plus 80, is found as follows; 60 + 90 + 60 + 80 = ( 60 + 90 ) + 60 + 80 = 150 + ( 60 + 80 ) = 150 + 140 = 290 Answer = 290
The average is 80.
The result of the equation - 120 plus 90 plus 60 plus 80, is found as follows; 120 + 90 + 60 + 80 = ( 120 + 90 ) + 60 + 80 = 210 + ( 60 + 80 ) = 210 + 140 = 350 Answer = 350
The result of the equation - 130 plus 80 plus 60 plus 70, is found as follows;130 + 80 + 60 + 70= ( 130 + 80 ) + 60 + 70= 210 + ( 60 + 70 )= 210 + 130= 340Answer = 340
The result of the equation - 70 plus 90 plus 60 plus 80, is found as follows; 70 + 90 + 60 + 80 = ( 70 + 90 ) + 60 + 80 = 160 + ( 60 + 80 ) = 160 + 140 = 300 Answer = 300
The result of the equation - 130 plus 70 plus 60 plus 80, is found as follows;130 + 70 + 60 + 80= ( 130 + 70 ) + 60 + 80= 200 + ( 60 + 80 )= 200 + 140= 340Answer = 340
The result of the equation - 130 plus 80 plus 60 plus 10, is found as follows;130 + 80 + 60 + 10= ( 130 + 80 ) + 60 + 10= 210 + ( 60 + 10 )= 210 + 70= 280Answer = 280
70 + 80 + 70 + 30+ 80 + 80+ 80 = 490
The result of the equation - 80 plus 90 plus 60 plus 80, is found as follows; 80 + 90 + 60 + 80 = ( 80 + 90 ) + 60 + 80 = 170 + ( 60 + 80 ) = 170 + 140 = 310 Answer = 310
The result of the equation - 130 plus 80 plus 60 plus 80, is found as follows;130 + 80 + 60 + 80= ( 130 + 80 ) + 60 + 80= 210 + ( 60 + 80 )= 210 + 140= 350Answer = 350
The result of the equation - 60 plus 90 plus 60 plus 80, is found as follows; 60 + 90 + 60 + 80 = ( 60 + 90 ) + 60 + 80 = 150 + ( 60 + 80 ) = 150 + 140 = 290 Answer = 290
The result of the equation - 130 plus 60 plus 60 plus 80, is found as follows;130 + 60 + 60 + 80= ( 130 + 60 ) + 60 + 80= 190 + ( 60 + 80 )= 190 + 140= 330Answer = 330
The average is 80.
The result of the equation - 130 plus 80 plus 60 plus 60, is found as follows;130 + 80 + 60 + 60= ( 130 + 80 ) + 60 + 60= 210 + ( 60 + 60 )= 210 + 120= 330Answer = 330
10x3+8=80-60+? 30+8=20+? 38=20+? 38-20=? 18=? The answer is 18.