Double Trouble Integer Recommended What number can you add to, and subtract from, 129 such that the sum is twice the difference? (Source: Mathematics Teaching in the Middle School, Jan-Mar 1995) October 26, 2018/by Kym Welty http://intermath.org/wp-content/uploads/2018/03/logo.jpg 0 0 Kym Welty http://intermath.org/wp-content/uploads/2018/03/logo.jpg Kym Welty2018-10-26 10:48:422019-01-18 16:15:42Double Trouble