Multiplication Level 13: 3d x 1d (both carry). multi-digit window train. 1. Left edge368 times 61. Left edgeStart with the leftmost digit pair.368times6Active multiplication windowraw windows18raw -> 18 | _ | _Start with the leftmost digit pair.2. Slide windows2. Slide windowsMove one window at a time.368times6Active multiplication windowraw windows1836raw -> 18 | 36 | _Move one window at a time.3. Raw strip3. Raw stripHold the raw totals in order.368times6Active multiplication windowraw windows183648raw -> 18 | 36 | 48Hold the raw totals in order.4. Settle strip4. Settle stripSettle once.Keep ones; carry moves left.raw windows18 | 36 | 48settled strip22 | 0 | 8Final multiplication answerKeep 1s; extra carry moves left.
