Flashcard 2 - Mathematics Flashcard Set for the TABE Test

Take the absolute value of each number and subtract the smaller from the larger. Then affix the original sign of the larger absolute value to the resulting value.

To add -18 and 3, subtract their absolute values (18 – 3 = 15), Then affix the original sign of the larger absolute value to the resulting value. The larger absolute value is 18, and its original sign was negative. That gives us -15.