Adding (same sign)
Subtracting (same sign)
Adding (different signs)
Subtracting (different signs)
Decimals (mixed)
100

9 + 5

+ 14

100

8-13

-5

100

5 + -2

+3

100

-5 - (-10)

+5

100

9.9 - 1.3

+8.6

200

-27 + -41

-68

200

-42 - (-12) 

-30

200

-48 + 84

+36

200

67 - (-24)

+91

200

-32.4 + -83.6

-116

300

373 + 594

+967

300

-23- (-13)

-10

300

68 + -23

+45

300

-325 - (+50)

-275

300

-42.7 - (-2.7)

-40

400

-408 + -412

-820

400

100-529

-429


400

-319 + 205

-114
400

6240 - (-220)

6460

400

-234.6 - (+234.6)

-469.2

500

-1372 + -2628

-2,000

500

-5432 - (-1725)

-3,707

500

-2020 + 1919

-101

500

-1234 - (+5678)

+4,444

500

1098 - 99,432

-98,334