Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Got It? - Page 31: 2

a)-24 b)-2 c)-2 d)-8

a) Both addends have the same sign, so you can add their absolute values and then to determine whether or not the number is negative or positive, check the signs of the two addends. The sign of the two addends is the sign of the answer (only for sums regarding two addends with the same sign). b) The difference of their absolute values is 2. The negative addend has the greater absolute value so the sum is negative. c) The difference of their absolute values is 2. The negative addend has the greater absolute value so the sum is negative. d) Both addends have the same sign, so you can add their absolute values and then to determine whether or not the number is negative or positive, check the signs of the two addends. The sign of the two addends is the sign of the answer (only for sums regarding two addends with the same sign).