Multiplication Level 4: 2d x 1d (with carry). 2x1 window product. 1. Tens window28 times 41. Tens windowKeep the left raw digit.28times4Active multiplication windowraw windows8raw -> 8 | _Keep the left raw digit.2. Ones window2. Ones windowHold raw 32.28times4Active multiplication windowraw windows832raw -> 8 | 32Hold raw 32.3. Settle strip3. Settle stripSettle once.Keep ones; carry moves left.raw windows8 | 32settled strip11 | 2Final multiplication answerKeep 1s; extra carry moves left.