🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5An arithmetic sequence has a constant .
6The common difference of 20, 15, 10, 5, … is .
🚀 Section C · Challenge ● CHALLENGE 5
✂ answer key — fold or cut before handing out
1-A 2-A 3-A 4-A | 5 difference 6 −5 7 = 25 8 = −5 9 = 243 | 10 = 0.5