1) 17 + (-5) = 122) -21 + 19 = -23) -8 + (-43) = -514) -15 + (-18) = -335) -0.5 + 6 = 5.56) -2.4 + (-3.2) = -5.67) 6.1 + (-8.3) = -2.28) -3.84 + 4.16 = 0.329) -2/9 + 5/9 = 3/9 = 1/310) -4/7 + 2/7 = -2/711) 5/8 + (-7/12) = 15/24 - 14/24 = 1/2412) -1 + 3/5 = -5/5 + 3/5 = -2/513) -2 + 1 3/4 = -2 + 7/4 = -1/414) 3 + (-1 2/7) = 3 - 9/7 = 3 - 1 2/7 = 1 5/715) 2 2/3 + (-1 5/6) = 2 4/6 - 1 5/6 = 1 11/6 = 2 5/616) -5 1/3 + 4.5 = -5 1/3 + 4 3/2 = -1 5/6
1) 17 + (-5) = 12
2) -21 + 19 = -2
3) -8 + (-43) = -51
4) -15 + (-18) = -33
5) -0.5 + 6 = 5.5
6) -2.4 + (-3.2) = -5.6
7) 6.1 + (-8.3) = -2.2
8) -3.84 + 4.16 = 0.32
9) -2/9 + 5/9 = 3/9 = 1/3
10) -4/7 + 2/7 = -2/7
11) 5/8 + (-7/12) = 15/24 - 14/24 = 1/24
12) -1 + 3/5 = -5/5 + 3/5 = -2/5
13) -2 + 1 3/4 = -2 + 7/4 = -1/4
14) 3 + (-1 2/7) = 3 - 9/7 = 3 - 1 2/7 = 1 5/7
15) 2 2/3 + (-1 5/6) = 2 4/6 - 1 5/6 = 1 11/6 = 2 5/6
16) -5 1/3 + 4.5 = -5 1/3 + 4 3/2 = -1 5/6