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SIGMA Mathematics League
| Website | http://sigmamathcontest.com/ |
| Grades | 6-9 |
| Type | individual and team |
| When | 5 per year |
| Where | your school |
| Sample Questions | samples |
SIGMA Mathematics League
| Website | http://sigmamathcontest.com/ |
| Grades | 6-9 |
| Type | individual and team |
| When | 5 per year |
| Where | your school |
| Sample Questions | samples |