0 முதல் 9 வரை — மீண்டும் பார்க்கலாம்
Numbers 0 to 9 — Review
You know all the beads now! This lesson is all practice. Read numbers, build numbers, and check yourself. Ready? Let's go!
Let's Learn
What you will learn today
Read and build any number from 0 to 9 quickly and confidently.
You have learned all numbers 0 to 9! Now let's practise until you can do it without thinking. The goal is speed and accuracy. Ready?
Review time!
You have now learned all 10 single digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. This lesson is your first big checkpoint. Let's make sure you know them all before moving on.
The complete guide — all 10 numbers
Here is every single-digit number and how it looks on the abacus:
- 0 → clear (no beads touching bar)
- 1 → 1 lower bead up
- 2 → 2 lower beads up
- 3 → 3 lower beads up
- 4 → 4 lower beads up
- 5 → upper bead down only
- 6 → upper bead down + 1 lower bead up
- 7 → upper bead down + 2 lower beads up
- 8 → upper bead down + 3 lower beads up
- 9 → upper bead down + 4 lower beads up
0 to 4 — lower beads only
None of these use the upper bead. Each adds one more lower bead.
5 to 9 — upper bead is always down
All of these have the upper bead down. The lower beads count the extra amount.
How to read any number in 2 steps
Step 1: Is the upper bead down? Yes → add 5. No → add 0. Step 2: Count lower beads touching the bar. Add that number. You are done!
📐 Reading challenge — what is this number?
Upper bead is DOWN. 2 lower beads are touching the bar. Step 1: upper bead down = 5. Step 2: 2 lower beads = 2. Total: 5 + 2 = 7!
The most confused pair: 4 and 5
4 lower beads up = 4. Upper bead down (no lower beads) = 5. These look similar but are completely different! Always check: is the upper bead down? Yes = 5 or more. No = 4 or less.
Practice: show 0 (clear)
Show zero — a perfectly cleared abacus.
🎯 Goal: Show the number 0
Now try 4
Show the number 4. Use only lower beads.
🎯 Goal: Show the number 4
Challenge: show 9
The biggest single-digit number. Show 9 from memory.
🎯 Goal: Show the number 9
Challenge Round
Build 8 from memory
Build the number 8 on the abacus without looking at the examples. You need the upper bead AND some lower beads. How many lower beads?
🎯 Goal: Show the number 8
You have mastered all 10 single-digit numbers (0–9)! Check the upper bead, count lower beads, add them up. This is a huge milestone. Now we move to bigger numbers — two rods and place value!
↪ Next: Tens and Ones — Place Value
Key Points
முக்கிய குறிப்புகள்
- ✓0 = all beads away from bar
- ✓1–4 = lower beads only
- ✓5 = upper bead only
- ✓6–9 = upper bead + lower beads
- ✓Tip: look at the upper bead first, then count lower beads
Lesson Materialsபாட வளங்கள்
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Glossary
சொல் அகராதி
Recognize
கண்டுபிடி
Build
உருவாக்கு
Single digit
ஒற்றை இலக்கம்
Quick look
விரைவாக பார்
Check
சரிபார்
Practice Activities
Read the Abacusஅபாகஸைப் படி
Look at each abacus and type the number it shows.
Look carefully at each abacus and type the number it shows.
Quizவினாடி வினா
Answer each question to check your understanding.
The abacus has: upper bead UP, 2 lower beads UP. What number is this?
Match the Termsபொருத்துக
Click a term on the left, then click its matching definition on the right.
Click a term, then click its matching definition.
Terms
Definitions
Fill in the Blanksஇடைவெளி நிரப்புக
Type the missing word and press Check or Enter.
Type the missing word and click Check.