Skip to content

Learn

Multiplication

Level 11 / build-up

3d x 1d (no carry)

4 visual steps / multi-digit window train

1. Left edge

1. Left edge
raw windows
Start with the leftmost digit pair.

Start with the leftmost digit pair.

2. Slide windows

2. Slide windows
raw windows
Move one window at a time.

Move one window at a time.

3. Raw strip

3. Raw strip
raw windows
Hold the raw totals in order.

Hold the raw totals in order.

4. Read answer

4. Read answer
Read answerRaw windows read left to right.raw windows
answer strip
Read 3 | 6 | 9 as 369.

Read 3 | 6 | 9 as 369.

Practice Level 11

A few quick rounds make the train automatic; each raw window keeps one digit.

Start Level