Can I read Addition Shortcuts for Quick Calculations on EtoBox?

Addition Shortcuts for Quick Calculations by dugdugdugdugi is a document available to read on EtoBox.

What is Addition Shortcuts for Quick Calculations about?

The document provides shortcuts for addition problems involving numbers close to multiples of ten or decimals. It gives the example of 116 + 39 by writing 39 as 40 - 1 and doing the addition in steps. Another example shows 116 + 97 by writing 97 as 100 - 3 and adding/subtracting in steps. Finally, it demonstrates adding decimals by separating the whole numbers and decimal portions and adding them separately.

Author

dugdugdugdugi

Language

EN