Show:
Add 2
Subtract 10
Missing, Missing, Missing
Before AND After
100

5 + 2

7

100

10 - 0

10

100

8, __, __, __, 12

8,  9,  10,  11,  12

100

__ , 1, __

0,  1,  2

200

2 + 8

10

200

16 - 10

6

200

17, __, __, __, 21

17,  18,  19,  20,  21

200

__, 10, __

9,  10,  11

300
11 + 2

13

300

24 - 10

14

300

44, __, __, __, 48

44,  45,  46,  47,  48

300

__, 19, __

18,  19,  20

400

2 + 24

26

400

77 - 10

67

400

89, __, __, __, 93

89,  90,  91,  92,  93

400

__, 53, __

52,  53,  54

500

99 + 2

101

500

99 - 10

89

500

100, __, __, __, 104

100,  101,  102,  103,  104

500

__, 102, __

101,  102,  103