≈

Estimation Station

Look fast and say about how many, pick the ballpark before you work it out, and estimate big numbers in steps. Close enough counts!

Big Numbers, Rounding & Estimating · Grades 2–4 · 8 levels · Free

8 levels

  1. About how many dots?
  2. A quick look
  3. Your own estimate
  4. Ballpark first
  5. Round, then multiply
  6. Estimate in steps
  7. Whole buses
  8. Estimates against the clock

What it practises

  • Estimating How Many
  • Ballpark Answers
  • Estimating in Steps

More Big Numbers, Rounding & Estimating lessons

Gradeless is free: short math and learning lessons for kids in kindergarten to grade 5, each one starting where your child is. For grown-ups