About this document
Subtraction Shortcuts for Quick Calculations by dugdugdugdugi is a document available to read on EtoBox.
The document provides shortcuts for subtraction calculations by breaking numbers down in a way to simplify the subtraction, such as 250 - 96 = 250 - (100 - 4) = 250 - 100 + 4 = 154. It also shows how to subtract decimals by breaking them into whole numbers and fractions, such as 18.3 - 0.8 = (18 - 0.8) + 0.3 = 17.5.
- Author
- dugdugdugdugi
- Language
- EN