adding integers
subtracting integers
adding decimals
subtracting decimals
100

6+(-7)

-1

100

14 - 6

8

100

13.6 + 2

15.6

100

12.32 - 6.23

6.09

200

14 + 37

51

200

13 - (-9)

21

200

13.24 + 31.23

44.47

200

32.67 -24.86

7.81

300

56+ (-49) +2

-1

300

-27 - (-34)

7

300

36.34 + 23.26

59.60

300

12.43 - 6.86

5.57

400

23 +9 +(-37)

-5

400

-45 - (-52)

7

400

13.64 +69.41 +21.11

104.16

400

43.89 - 12.12

31.77

500

54 + (-65) + 14 

3

500

-68 - 73 

-141

500

 39.86 + 43.69 +4.76

88.31

500

92.78 - 73.56 -1.42

17.8