Use the index finger for the complete left numeric column.

Reach upward from 4 to 7 and downward from 4 to 1, returning to 4 after every reach.

练习输入: 1, 4, 7

目标: 98.00% 准确率.

Index Column 1, 4, and 7 Guided Entry: 444 111 777 414 474 147 741 174 471 714 417 141 447 771 114 474 717

Index Column 1, 4, and 7 Accuracy Review: 147 174 417 471 714 741 114 447 771 141 474 717 744 411 177 147 741 471