Show:
Addition
Addition 2
Subtraction
Subtraction 2
3 Digit Addition & Subtraction
100

9 + 3

12

100
25 + 10
35
100

12 - 3

9
100
20 - 10
10
100
100 + 200
300
200

12 + 3

15

200
24 + 3
27
200

12 - 4

8

200
21 - 18
3
200

123 + 345

468

300
15 + 3
18
300
25 + 11
36
300

18 - 3

15
300
26 - 14
12
300
700 - 300
400
400
20 + 6
26
400
13 + 21
34
400

19 - 5

14

400
56 - 24
32
400

978 - 456

522

500
29 + 7
36
500
23 + 28
51
500

28 - 5

23

500
63 - 39
24
500

BONUS: 4 Digit Addition 7246 + 1143

 8389