5128.
5068 = 5,068
181
360
60+60+60+60+60+60+60+60 =480 All the addition can happen in the same step. This is the same as 60*8.
300 !
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
10000
-30 plus 60 = 30
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
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