300 !
180
60 + 60 + 120 = 240
The result of the equation - 90 plus 90 plus 60 plus 80, is found as follows; 90 + 90 + 60 + 80 = ( 90 + 90 ) + 60 + 80 = 180 + ( 60 + 80 ) = 180 + 140 = 320 Answer = 320
The result of the equation - 30 plus 90 plus 60 plus 80, is found as follows; 30 + 90 + 60 + 80 = ( 30 + 90 ) + 60 + 80 = 120 + ( 60 + 80 ) = 120 + 140 = 260 Answer = 260
360
300 !
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
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
-30 plus 60 = 30
180
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
300 is the answere Another way of putting that question is 60 times 5 becuasae there are 5 60's.
60 + 60 + 120 = 240
190
50+50+60+60= 220 60+50=110 +60+50=110=220