1:41Long-form

When calculus teacher struggles with BASIC multiplication

United StatesPublished October 8, 2026

Views 135K  |  Likes 1.08K  |  Comments 99
Views#11,958,850Global
Views#2,317,124United States

Channel

blackpenredpenblackpenredpen
1.44M subs•2.47K videos•Dec 2012

Based on an estimated $0.7–$2 CPM, this video's 135K views translate to an estimated $95 – $271 in lifetime ad revenue.

Revenue estimate

Based on an estimated $0.7–$2CPM (revenue per 1,000 views) — a rough public estimate, not actual creator earnings, which depend on ad rates, audience geography, and monetization settings YouTube doesn't expose publicly.

Total (all-time)$95 – $271