1. Tens window
Keep the left raw digit.
2d x 1d (no carry)
2 visual steps / 2x1 window product
2. Ones window
Keep the ones digit.
Practice Level 3
A few quick rounds make the train automatic; each raw window keeps one digit.
Start Level2 visual steps / 2x1 window product
Keep the left raw digit.
Keep the ones digit.
A few quick rounds make the train automatic; each raw window keeps one digit.
Start Level