Counting Back
9-5
4
4+5
9
10+4
14
10-4
6
3+🟥=7
4
12
10+11
21
12+8
20
22-8
14
10+🟥=15
5
24-7
17
13+14
27
13+26
39
35-14
21
12+🟥=18
6
45-8
37
15+16
31
47+39
86
67-38
29
22+🟥=32
10
154-17
137
25+24
49
169+237
406
158-61
97
46+🟥=70
24