Choose the Correct Inequality Symbol: 0 ? -3.9

Comparing Numbers with Negative Decimals

Fill in the corresponding sign

0?3.9 0?-3.9

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1

Understand the problem

Fill in the corresponding sign

0?3.9 0?-3.9

2

Step-by-step solution

Since the number -3.9 is further from zero, it must be smaller, therefore:

0>3.9 0 > -3.9

3

Final Answer

> >

Key Points to Remember

Essential concepts to master this topic
  • Number Line Rule: Numbers get smaller as you move left
  • Technique: 0 is always greater than any negative number like -3.9
  • Check: Visualize on number line: 0 is right of -3.9 ✓

Common Mistakes

Avoid these frequent errors
  • Thinking negative numbers are larger because they look bigger
    Don't think -3.9 > 0 because 3.9 looks bigger than 0 = completely wrong answer! The negative sign makes the entire number smaller than zero. Always remember that ANY negative number is less than zero.

Practice Quiz

Test your knowledge with interactive questions

All negative numbers appear on the number line to the left of the number 0.

FAQ

Everything you need to know about this question

Why is 0 greater than -3.9 when 3.9 is bigger than 0?

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The negative sign changes everything! 3.9 -3.9 means you're 3.9 units below zero on the number line, making it smaller than 0.

How do I remember which way the inequality symbol goes?

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Think of the symbol as a hungry mouth that always wants to eat the bigger number! Since 0 > -3.9, the mouth opens toward 0.

What if I'm comparing two negative numbers?

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The negative number closer to zero is always larger. For example: 1>5 -1 > -5 because -1 is closer to 0 than -5.

Can I use a number line to help me?

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Absolutely! Draw a number line with 0 in the middle. Numbers to the right are always greater than numbers to the left. Since 0 is right of -3.9, we know 0 > -3.9.

What's the difference between > and < symbols?

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> means "greater than" and < means "less than". Remember: the wide part of the symbol always faces the larger number!

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