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Stack 1 Fact Fam +-
| Question | Answer |
|---|---|
| 1+1 | 1+1=2 |
| 2-1 | 2-1=1 |
| 1+2 | 1+2=3 |
| 2+1 | 2+1=3 |
| 3-1 | 3-1=2 |
| 3-2 | 3-2=1 |
| 1+3 | 1+3=4 |
| 3+1 | 3+1=4 |
| 4-1 | 4-1=3 |
| 4-3 | 4-3=1 |
| 1+4 | 1+4=5 |
| 4+1 | 4+1=5 |
| 5-1 | 5-1=4 |
| 5-4 | 5-4=1 |
| 1+5 | 1+5=6 |
| 5+1 | 5+1=6 |
| 6-1 | 6-1=5 |
| 6-5 | 6-5=1 |
| 1+6 | 1+6=7 |
| 6+1 | 6+1=7 |
| 7-1 | 7-1=6 |
| 7-6 | 7-6=1 |
| 1+7 | 1+7=8 |
| 7+1 | 7+1=8 |
| 8-1 | 8-1=7 |
| 8-7 | 8-7=1 |
| 1+8 | 1+8=9 |
| 8+1 | 8+1=9 |
| 9-1 | 9-1=8 |
| 9-8 | 9-8=1 |
| 1+10 | 1+10=11 |
| 10+1 | 10+1= 11 |
| 11-1 | 11-1=10 |
| 11-10 | 11-10=1 |
| 1+12 | 1+12=13 |
| 12+1 | 12+1=13 |
| 13-1 | 13-1=12 |
| 13-12 | 13-12=1 |
| 1+9 | 1+9=10 |
| 10-1 | 10-1=9 |
| 10-9 | 10-9=1 |
| 9+1 | 9+1=10 |
| 1+11 | 1+11=12 |
| 11+1 | 11+1=12 |
| 12-11 | 12-11=1 |
| 12-1 | 12-1=11 |