Place Value: Whole Numbers
📋 What it is
Each digit's value depends on its place; each place is 10× the one to its right.
🗣️ Coach says
The same digit means different amounts depending on WHERE it sits. In 3,000 the "3" is three thousand; in 300 it's three hundred. Every place is ten times the place to its right — that's the whole trick of our number system.
🧠 Memory hook
Move one place LEFT = ×10 (ten times bigger). One place RIGHT = ÷10.
😂 Giggle
Why was 6 afraid of 7?
Because 7 8 9!
😲 Whoa!
Our base-10 system likely comes from a very old counting tool: your ten fingers.
✅ Quick check: In the number 4,725, what is the value of the 7?
Say your answer out loud first — then reveal.
700 — it sits in the hundreds place.
A digit's value is the digit times its place value; 7 in the hundreds place is 700.
🧪 Try it! (2 minutes)
Write your age, then add a 0 to the end. It just got ten times bigger — that's a place shift.