Multiplication Level 8: 2d x 2d (medium digits). 2x2 window scan. 1. Left edge48 times 561. Left edgeStart with the leftmost window.48times56Active multiplication windowraw windows20raw -> 20 | _ | _Start with the leftmost window.2. Cross window2. Cross windowAdd both crossing products.48times56Active multiplication windowraw windows2064raw -> 20 | 64 | _Add both crossing products.3. Right edge3. Right edgeFinish the ones product.48times56Active multiplication windowraw windows206448raw -> 20 | 64 | 48Finish the ones product.4. Settle strip4. Settle stripSettle once.Keep ones; carry moves left.raw windows20 | 64 | 48settled strip26 | 8 | 8Final multiplication answerKeep 1s; extra carry moves left.
