1.67
2+4
6
2+7
9
12.4 + 4.21
16.61
2+ (-1)
1
6+ (-3)
3
12+ (-17)
-5
4.57 + (-17.49)
-12.92
6.7 + (-6.9)
-0.2
10+ (-24)
-14
-19 + 70 3/4
51 3/4 or 51.75
-7 + 7
0
40+(-76.9)
-36.9
142+ 160
302
3/5 + (-4/5)
1/5 or 0.2
6 + -6.0001
-0.0001
4090909090909.19 + -4090909090909.18
0.01
457.3 + (-71.2)
386.1
17+ (-312)
-295
-12 + 2022
2010
12/1 + 6/7
12 6/7