A2 — Estimating, Finding Landmark Lengths, and Rounding

Problem Strings for Fluency and Beyond · Estimating, Finding Landmark Lengths, and Rounding

Teacher notes

This string is like A1. Continue to use the number line that was used in the A1 string (80 as the endpoint). Again, show one number at a time. As you show the number ask, "Where should we place this number on the number line; what landmark numbers is it between?"

See A1 — Estimating, Finding Landmark Lengths, and Rounding for the full "Behind the Numbers" explanation — this string uses the same crafting logic.

The string