Squares Level 8: 2d square (large units). multiplication window train. 1. Left Edge78 squared equals 78 times itself1. Left EdgeHighlight the left edge pair and drop its raw digit.78times78Active multiplication windowraw windows49raw -> 49 | _ | _Highlight the left edge pair and drop its raw digit.2. Center Window2. Center WindowUse the full middle window.78times78Active multiplication windowraw windows49112raw -> 49 | 112 | _Use the full middle window.3. Right Edge3. Right EdgeFinish with the right edge pair.78times78Active multiplication windowraw windows4911264raw -> 49 | 112 | 64Finish with the right edge pair.4. Settle strip4. Settle stripSettle once.Keep ones; carry moves left.raw windows49 | 112 | 64settled strip60 | 8 | 4Final multiplication answer49 | 112 | 64 -> 6084.
