Problem: the sum of all consecutive odd integers from − 19 to 29 , inclusive , is
Rationale: "the sum of the odd numbers from - 19 to + 19 is 0 . let ' s add the remaining numbers . 21 + 23 + 25 + 27 + 29 = 5 ( 25 ) = 125 the answer is a ."
annotated_formula: add(add(add(add(19, const_2), add(add(19, const_2), const_2)), add(add(add(19, const_2), const_2), const_2)), 29)