APPENDIX 
7. 4206 
9- 439 
11. 26.62 
1.45 
.527 
.418 
8. 50.81 
10. 5.321 
12. 5073 
.206 
72.5 
3.604 
26. Comptometer Adding 
Description: See sample. This is one of the several tests in 
use for operators on the comptometer, Burroughs adding 
machine, etc. 
Instructions: “Add these columns on your machine. Add each 
column until you get the same answer twice. Do this 
quickly and carefully. All right? Start.” 
Record: The first column counts one unit, the second two, and 
the third three, making six units for the test. Record 
number of test, time, number of units, and number of 
units wrong. E. g., 26; 200 sec., 6 •- 1. 
Rating: Point of reference, 6 units in 180 seconds; RU 6; RU 30 
sec. Apply formula II. E. g., 1°.^ ^ li = >7 e 
200 
27. Comptometer Extending 
Description: See sample test. 
Instructions: “Work out these multiplication or extending 
examples on your machine. Write each answer as you get 
it. Do each example once only. Work quickly but do 
not rush. All right? Start.” 
Record: Number of test, time, number of mistakes. 
Rating: Point of reference, 12 units in 144 seconds; RU, 12; 
Ru, 12; E, errors which count double. Apply formula II.