20-5
15
25+10
35
29+128
157
109-9
100
2
Two
10-10
0
30+10
40
29+3
32
19-5
14
4
Four
15-15
70+3
73
10+34
44
34-32
6
Six
25-90
65
98+1
99
22+22
23-4
19
10
ten
10-109
109+100
209
1000+21
1021
100-3
97
3
Three