Show:
Addition
Addition 2
Subtraction
Subtraction 2
Add Three Numbers
100
1 + 0
1
100
25 + 10
35
100
4 - 3
1
100
20 - 10
10
100

2+2+1

5

200
9 + 3
12
200
24 + 3
27
200
7 - 4
3
200
21 - 18
3
200

3+2+2

7

300
15 + 3
18
300
25 + 11
36
300
11 - 3
8
300
26 - 14
12
300

5+5+4

14

400
20 + 6
26
400
13 + 21
34
400
18 - 2
16
400

56 - 12

44

400

7+7+3

17

500
29 + 7
36
500
23 + 28
51
500
19 - 4
15
500

63 - 15

48
500

9+9+8

26