How to Calculate Quickly: Full Course in Speed Arithmetic
- Type:
- Other > E-books
- Files:
- 1
- Size:
- 5.09 MB
- Texted language(s):
- English
- Tag(s):
- How to Calculate Quickly: Full
- Quality:
- +1 / -0 (+1)
- Uploaded:
- Jan 29, 2013
- By:
- nrajpa
- Seeders:
- 153
- Leechers:
- 8
- Comments:
- 0
How to Calculate Quickly: Full Course in Speed Arithmetic Many useful procedures explained and taught: two-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful short cuts. More than 8,000 problems, with solutions.