About

Understanding the value of each digit within a larger number is a fundamental concept in mathematics known as "Place Value." This tool helps students and teachers visualize the structure of numbers by breaking them down into their constituent parts (expanded form).

For example, the number 345.2 is decomposed into 300 + 40 + 5 + 0.2. The tool also features a Number-to-Text engine, converting digits into their spoken English equivalent, aiding in literacy and pronunciation of large figures up to the trillions.

Formulas

A number in base-10 is the sum of its digits multiplied by their place value:

N = n∑i=0 d_i × 10ⁱ

Where d is the digit at position i.

Reference Data

Digit Position	Value (Power of 10)	Name
10⁰	1	Ones (Units)
10¹	10	Tens
10²	100	Hundreds
10³	1,000	Thousands
10⁶	1,000,000	Millions
10^-1	0.1	Tenths
10^-2	0.01	Hundredths

Frequently Asked Questions

The logic supports numbers up to the Trillions (12 zeros) before the text generation becomes too verbose. Scientific notation is not supported.

Yes, it supports decimal points up to 6 places, labeling them as tenths, hundredths, thousandths, etc.