Identify the Missing Predecessor: What Number Comes Before 3501?

Q: What's the difference between predecessor and successor?

A predecessor comes before a number (subtract 1), while a successor comes after a number (add 1). Think of it like stepping backward vs. forward on a number line!

Q: Why do we subtract 1 and not any other number?

We subtract 1 because we want the immediate predecessor - the very next number before 3501. Numbers follow a sequence where each consecutive number differs by exactly 1.

Q: Does this work for all numbers, even negative ones?

Yes! The rule works for all integers. For example, the predecessor of -5 is -6 (subtract 1: -5 - 1 = -6).

Q: How can I remember which operation to use?

Think of walking on a number line: to find what comes before, you walk backward (subtract). To find what comes after, you walk forward (add).

Number Sequencing with Predecessor Identification

The number after me is 3501. What number am I?

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

The number after me is 3501. What number am I?

Step-by-step solution

To find the number before 3501, we simply need to subtract 1 from 3501 because the problem states that "the number after me is 3501". This implies the next integer after our unknown number must be 3501.

Performing the calculation:

$\text{Unknown number} = 3501 - 1 = 3500$

Therefore, the number you are looking for is $3500$ .

Final Answer

$3500$

Key Points to Remember

Essential concepts to master this topic

Rule: The predecessor is always exactly one less than given number
Technique: Subtract 1 from 3501 to get 3500 as predecessor
Check: Verify that 3500 + 1 equals the original number 3501 ✓

Common Mistakes

Avoid these frequent errors

Adding 1 instead of subtracting
Don't add 1 to find what comes before = 3502 instead of 3500! This finds the successor, not predecessor. Always subtract 1 to find the number that comes immediately before.

Practice Quiz

Test your knowledge with interactive questions

Select the predecessor of the number 2100:

FAQ

Everything you need to know about this question

What's the difference between predecessor and successor?

A predecessor comes before a number (subtract 1), while a successor comes after a number (add 1). Think of it like stepping backward vs. forward on a number line!

Why do we subtract 1 and not any other number?

We subtract 1 because we want the immediate predecessor - the very next number before 3501. Numbers follow a sequence where each consecutive number differs by exactly 1.

Does this work for all numbers, even negative ones?

Yes! The rule works for all integers. For example, the predecessor of -5 is -6 (subtract 1: -5 - 1 = -6).

How can I remember which operation to use?

Think of walking on a number line: to find what comes before, you walk backward (subtract). To find what comes after, you walk forward (add).

What if the problem asks for multiple predecessors?

If asked for the 3 numbers before 3501, subtract 1, 2, and 3:

3501 - 1 = 3500
3501 - 2 = 3499
3501 - 3 = 3498

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