Multiplication Level 7: 2d x 2d (small digits). 2x2 window scan. 1. Left edge24 times 131. Left edgeStart with the leftmost window.24times13Active multiplication windowraw windows2raw -> 2 | _ | _Start with the leftmost window.2. Cross window2. Cross windowAdd both crossing products.24times13Active multiplication windowraw windows210raw -> 2 | 10 | _Add both crossing products.3. Right edge3. Right edgeFinish the ones product.24times13Active multiplication windowraw windows21012raw -> 2 | 10 | 12Finish the ones product.4. Settle strip4. Settle stripSettle once.Keep ones; carry moves left.raw windows2 | 10 | 12settled strip3 | 1 | 2Final multiplication answerKeep 1s; extra carry moves left.
