Squares Level 10: 2d square mastery (digits 4-9). multiplication window train. 1. Left Edge86 squared equals 86 times itself1. Left EdgeHighlight the left edge pair and drop its raw digit.86times86Active multiplication windowraw windows64raw -> 64 | _ | _Highlight the left edge pair and drop its raw digit.2. Center Window2. Center WindowUse the full middle window.86times86Active multiplication windowraw windows6496raw -> 64 | 96 | _Use the full middle window.3. Right Edge3. Right EdgeFinish with the right edge pair.86times86Active multiplication windowraw windows649636raw -> 64 | 96 | 36Finish with the right edge pair.4. Settle strip4. Settle stripSettle once.Keep ones; carry moves left.raw windows64 | 96 | 36settled strip73 | 9 | 6Final multiplication answer64 | 96 | 36 -> 7396.
