Answer Key — 3.MD.D.8
For parents and tutors
Do not share with students before practice tests.
Practice Problems — Sets 1–10
| Set | Guidance | | --- | --- | | Set 1 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 2 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 3 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 4 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 5 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 6 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 7 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 8 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 9 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 10 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. |
Practice Problems — Sets 11–20
| Set | Guidance | | --- | --- | | Set 11 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 12 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 13 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 14 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 15 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 16 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 17 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 18 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 19 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. | | Set 20 | Solve real world and mathematical problems involving perimeters of po… — verify written work and accept reasonable drawings. |
Review tiers 1–10
- Checklists are parent-judged.
- Written items: verify against practice set patterns.
- Standard text: Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.
Practice test scoring
| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |
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