5 6 9
2. 4 10
6 8
8 6
10 4
3. 16-8=8 13-7=6
14-8=6 18-9=9
17-8=9 15-7=8
4. 8+7=15 15-8=7
7+8=15 15-7=8
5. 5 9 6
7 9 6
8 4 4
5 8 12
3 16 7
6. 15
6
10
7. 15 13
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