Find Numbers Before and After 9099: Complete the Sequence

Number Sequence with Consecutive Integers

Complete the previous and following numbers:

,9099, \Box,9099,\Box

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Step-by-step written solution

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1

Understand the problem

Complete the previous and following numbers:

,9099, \Box,9099,\Box

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Identify the given number, which is 9099.
  • Step 1: Compute the predecessor by subtracting 1 from 9099.
    The predecessor is 90991=9098 9099 - 1 = 9098 .
  • Step 2: Compute the successor by adding 1 to 9099.
    The successor is 9099+1=9100 9099 + 1 = 9100 .

Now, let's confirm with the available choices:

We calculated the predecessor as 9098 9098 and the successor as 9100 9100 .

Therefore, the correct sequence filling the blanks is:

9098,9099,9100 9098, 9099, 9100

Hence, the correct answer from the given choices is:

Choice 2: 9098,9100 9098, 9100

3

Final Answer

9098,9100 9098,9100

Key Points to Remember

Essential concepts to master this topic
  • Rule: Consecutive integers differ by exactly 1 in counting order
  • Technique: Predecessor = subtract 1, successor = add 1: 90991=9098,9099+1=9100 9099 - 1 = 9098, 9099 + 1 = 9100
  • Check: Verify sequence flows naturally: 9098, 9099, 9100 ✓

Common Mistakes

Avoid these frequent errors
  • Confusing place value patterns with consecutive counting
    Don't subtract or add 10, 100, or 1000 thinking about place values = wrong sequence! This creates gaps in counting order. Always add or subtract exactly 1 for consecutive integers.

Practice Quiz

Test your knowledge with interactive questions

What number follows 70,099?

FAQ

Everything you need to know about this question

Why is 9090, 9099, 9100 wrong as an answer?

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Because 9090 and 9099 are not consecutive! There are 8 numbers between them (9091, 9092, 9093, 9094, 9095, 9096, 9097, 9098). Consecutive means right next to each other in counting order.

What does 'consecutive integers' actually mean?

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Consecutive integers are whole numbers that follow each other in order with no gaps. Like counting: 1, 2, 3 or 47, 48, 49. Each number is exactly 1 more than the previous one.

How do I find the number before any given number?

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Simply subtract 1 from the given number. For example: the number before 9099 is 90991=9098 9099 - 1 = 9098 . This works for any whole number!

How do I find the number after any given number?

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Simply add 1 to the given number. For example: the number after 9099 is 9099+1=9100 9099 + 1 = 9100 . This is called the successor.

What if the question asks for numbers that are 10 apart?

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Then it's asking for a different type of sequence, not consecutive integers. You would add/subtract 10 instead of 1. But this question specifically asks for the numbers immediately before and after, which means consecutive.

Can I double-check my answer somehow?

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Yes! Count from your first number to your last number. For 9098, 9099, 9100, you count: 9098 (1), 9099 (2), 9100 (3). Three consecutive numbers should have exactly 3 numbers total with no gaps.

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