Adding (same sign)
9 + 5
+ 14
8-13
-5
5 + -2
+3
-5 - (-10)
+5
9.9 - 1.3
+8.6
-27 + -41
-68
-42 - (-12)
-30
-48 + 84
+36
67 - (-24)
+91
-32.4 + -83.6
-116
373 + 594
+967
-23- (-13)
-10
68 + -23
+45
-325 - (+50)
-275
-42.7 - (-2.7)
-40
-408 + -412
-820
100-529
-429
-319 + 205
6240 - (-220)
6460
-234.6 - (+234.6)
-469.2
-1372 + -2628
-2,000
-5432 - (-1725)
-3,707
-2020 + 1919
-101
-1234 - (+5678)
+4,444
1098 - 99,432
-98,334