ADD
2+3
5
5-1
4
54
5 TENS AND 4 ONES
24
23
51
50s
3+4
7
7-0
7
92
9 TENS AND 2 ONES
18
17
36
30s
6+3
9
7-6
1
44
4 TENS AND 4 ONES
38
37
48
40s
7+7
14
10-7
3
80
8 TENS AND 0 ONES
100
99
17
teens
100+150
250
12-6
6
100
0 TENS AND 0 ONES
80
79
99
90s