Choose the Correct Sign: Comparing 97,030 and 97,100

Comparing Large Numbers with Place Value

Select the appropriate sign:

97,03097,100 97,030\Box97,100

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Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Select the appropriate sign:

97,03097,100 97,030\Box97,100

2

Step-by-step solution

To determine the correct relation between the numbers 97,03097,030 and 97,10097,100, follow these steps:

  • Step 1: Break down each number into its individual digits starting from the left.
  • Step 2: Compare the most significant digits. If they are equal, move to the next set of digits.
  • Step 3: Identify any difference in value between corresponding digits.

Let's work through this:

Step 1: The number 97,03097,030 breaks down to 99, 77, 00, 33, and 00. The number 97,10097,100 breaks down to 99, 77, 11, 00, and 00.

Step 2: Start by comparing digits from the left:

  • Thousands place: Both have 9797 in the thousands place, so they are equal in that regard.
  • Hundreds place: The first number has 00, and the second has 11 in the hundreds place.

Step 3: Since 0<10 < 1, we can determine that 97,030<97,10097,030 < 97,100.

Therefore, the appropriate sign that correctly completes the comparison is <<.

3

Final Answer

<

Key Points to Remember

Essential concepts to master this topic
  • Rule: Compare digits from left to right starting with highest place value
  • Technique: Stop at first different digit: 0 vs 1 in hundreds place
  • Check: Verify: 97,030<97,100 97,030 < 97,100 since 0 hundreds < 1 hundred ✓

Common Mistakes

Avoid these frequent errors
  • Comparing digits from right to left
    Don't start comparing from the ones place and work left = wrong conclusion! The rightmost digits have less value than leftmost ones. Always compare from the highest place value (leftmost) moving right, stopping at the first difference.

Practice Quiz

Test your knowledge with interactive questions

Select the appropriate sign:

\( 24,909\Box24,990 \)

FAQ

Everything you need to know about this question

Why don't I compare all the digits?

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You only need to compare until you find the first difference! Once you see that 0 < 1 in the hundreds place, you know 97,030<97,100 97,030 < 97,100 without checking the remaining digits.

What if the numbers have different amounts of digits?

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The number with more digits is always larger (assuming both are positive). For example, 1,000 > 999 because 1,000 has 4 digits while 999 has only 3 digits.

How do I remember which direction the inequality sign points?

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Think of the inequality sign as a hungry alligator that always opens its mouth toward the larger number! So < means 'less than' because the opening faces the bigger number on the right.

What happens when I compare numbers with the same digits in different places?

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The position matters more than the digit itself. For example, 1,000 > 999 even though 9 > 1, because the 1 is in the thousands place while 9 is only in the hundreds place.

Can I use subtraction to check my comparison?

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Yes! If 97,10097,030=70 97,100 - 97,030 = 70 , the positive result confirms that 97,100>97,030 97,100 > 97,030 , so 97,030<97,100 97,030 < 97,100 .

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