Decimals can be compared by lining up the digits using place value. Start from the leftmost digit and compare digit by digit until you find a difference.
🔍 Interactive Decimal Comparator
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Compare!
Ones . Tenths Hundredths Thousandths
0.530
0.538
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0.538 is larger
🔍 Why It Matters
This is useful for money, measurements, and data interpretation. Whether you're comparing prices, measuring ingredients, or analyzing statistics, decimal comparison is essential for making informed decisions.
1
Line Up Decimals
0.53 vs 0.538
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2
Add Zeros if Needed
0.530 vs 0.538
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3
Compare Digit by Digit
5=5, 3=3, 0<8
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4
Determine Winner
0.538 > 0.53
✏️ Worked Example
Which is larger: 0.53 or 0.538?
Step 1: Line up the decimal points: 0.53 and 0.538
Step 2: Add zeros to make equal length: 0.530 and 0.538
Step 3: Compare tenths → same (5), hundredths → same (3), thousandths → 0 vs. 8
Step 4: Since 8 > 0, we have 0.538 is larger
🎯 Decimal Ordering Game
0.7
0.68
0.2
0.12
0.21
Click tiles to select, then drag to reorder!
🔢 Practice Exercises
1. Which is larger: 0.7 or 0.68?
2. Order from smallest to largest: 0.2, 0.12, 0.21
3. Is 0.9 greater than 0.89?
4. Round 0.856 to 2 decimal places
5. Write these in ascending order: 1.2, 1.02, 1.12
⚠️ Common Mistakes
Not aligning decimal points when comparing
Thinking 0.8 is less than 0.79 because 8 < 79
✨ Quick Summary
Compare digit by digit. Add zeros to help line them up.