**Number Sense and Percents**

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Summary

The essence of the content revolves around developing number sense to efficiently handle percentage problems without the need for a calculator, emphasizing pattern recognition and mental math strategies.

- Number sense is an intuitive understanding of numbers and arithmetic patterns, developed over time through curiosity and practice.
- A key method for handling percentages involves starting with finding 10% of a number, and sometimes 1%, to simplify calculations.
- This approach is presented as both a logical and creative way to solve percentage problems more efficiently than traditional methods.
- Examples demonstrate how to apply this method to various percentage calculations, illustrating the process and potential for mental calculation.
- Practice problems are provided to encourage the application of these strategies, highlighting the importance of practice in developing number sense.

Chapters

00:01

Introduction to Number Sense

00:43

The Method for Handling Percents

01:34

Applying the Method: Examples

03:57

Practice Without a Calculator