1) 17 + (-5) = 12) -21 + 19 = -3) -8 + (-43) = -54) -15 + (-18) = -35) -0.5 + 6 = 5.6) -2.4 + (-3.2) = -5.7) 6.1 + (-8.3) = -2.8) -3.84 + 4.16 = 0.39) -2/9 + 5/9 = 3/9 = 1/10) -4/7 + 2/7 = -2/11) 5/8 + (-7/12) = 15/24 - 14/24 = 1/212) -1 + 3/5 = -5/5 + 3/5 = -2/13) -2 + 1 3/4 = -2 + 7/4 = -1/14) 3 + (-1 2/7) = 3 - 9/7 = 3 - 1 2/7 = 1 5/15) 2 2/3 + (-1 5/6) = 2 4/6 - 1 5/6 = 1 11/6 = 2 5/16) -5 1/3 + 4.5 = -5 1/3 + 4 3/2 = -1 5/6
1) 17 + (-5) = 1
2) -21 + 19 = -
3) -8 + (-43) = -5
4) -15 + (-18) = -3
5) -0.5 + 6 = 5.
6) -2.4 + (-3.2) = -5.
7) 6.1 + (-8.3) = -2.
8) -3.84 + 4.16 = 0.3
9) -2/9 + 5/9 = 3/9 = 1/
10) -4/7 + 2/7 = -2/
11) 5/8 + (-7/12) = 15/24 - 14/24 = 1/2
12) -1 + 3/5 = -5/5 + 3/5 = -2/
13) -2 + 1 3/4 = -2 + 7/4 = -1/
14) 3 + (-1 2/7) = 3 - 9/7 = 3 - 1 2/7 = 1 5/
15) 2 2/3 + (-1 5/6) = 2 4/6 - 1 5/6 = 1 11/6 = 2 5/
16) -5 1/3 + 4.5 = -5 1/3 + 4 3/2 = -1 5/6