RURAL ARITHMETIC 



FUNDAMENTAL PROCESSES 



1. The ability to add, subtract, multiply, and divide, rapidly 

 and accurately, is at the foundation of all satisfactory prog- 

 ress in the study of arithmetic. A large part of the errors in 

 business calculations are caused by illegible figures that are 

 placed in irregular columns for addition. More stress should 

 be placed upon making neat, legible figures of uniform size. 



2. Dictation exercises in writing numbers should be given 

 until the pupil can write numbers rapidly, placing units of 

 the same order in the same vertical column. 



3. Much practice should be given in reading at a glance 

 numbers consisting of from two to five figures, without nam- 

 ing the individual figures. A good reader takes in a word at 

 a glance, without thinking of the separate letters forming the 

 word ; the same standard should be set for reading numbers. 



RAPID ADDITION 



4. Rapid adding depends largely upon the ability to com- 

 bine instantly two or more figures into a single number. 



ORAL EXERCISE 



Practice naming at sight the sums of the following groups 

 from left to right, from right to left, from top to bottom, and 

 from bottom to top, until the sums can be named at the rate 

 of 100 per minute. 



1. 188719782285964 

 192339581245311 

 l 



