Find the Predecessor: Identifying the Number Before 4030

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

A predecessor is the number that comes before (subtract 1), while a successor is the number that comes after (add 1). Think of it like walking backwards vs forwards on a number line!

Q: How can I remember which operation to use?

Remember: Predecessor = Previous = Past, so you go backwards by subtracting 1. Successor = Sequential = Next, so you go forwards by adding 1.

Q: What if the number ends in zero like 4030?

No problem! Just subtract 1 normally: $ 4030 - 1 = 4029 $. The zero becomes 9, and you borrow from the tens place. It works the same for any number!

Number Sequences with Predecessor Identification

Select the predecessor of the number 4030:

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

Select the predecessor of the number 4030:

Step-by-step solution

To solve this problem, let's follow these steps:

Step 1: Identify the number provided in the problem. In this case, the number is 4030.
Step 2: Use the formula for finding a predecessor:
$\text{Predecessor of } 4030 = 4030 - 1$ .
Step 3: Perform the subtraction to find the predecessor:
$4030 - 1 = 4029$ .

Therefore, the predecessor of the number 4030 is $\textbf{4029}$ .

Therefore, the solution to the problem is $4029$ .

Final Answer

$4029$

Key Points to Remember

Essential concepts to master this topic

Rule: The predecessor is always one number less than given
Technique: Subtract 1 from the number: 4030 - 1 = 4029
Check: Count backwards to verify: 4031, 4030, 4029 ✓

Common Mistakes

Avoid these frequent errors

Adding instead of subtracting
Don't add 1 to find the predecessor (4030 + 1 = 4031)! This gives you the successor instead, which is the number that comes after. Always subtract 1 to find the number that comes before.

Practice Quiz

Test your knowledge with interactive questions

Which number succeeds the number 9209?

FAQ

Everything you need to know about this question

What's the difference between predecessor and successor?

A predecessor is the number that comes before (subtract 1), while a successor is the number that comes after (add 1). Think of it like walking backwards vs forwards on a number line!

Does every number have a predecessor?

Yes! Every whole number has a predecessor. For 4030, the predecessor is 4029. Even for 1, the predecessor is 0. The pattern always works by subtracting 1.

How can I remember which operation to use?

Remember: Predecessor = Previous = Past, so you go backwards by subtracting 1. Successor = Sequential = Next, so you go forwards by adding 1.

What if the number ends in zero like 4030?

No problem! Just subtract 1 normally: $4030 - 1 = 4029$ . The zero becomes 9, and you borrow from the tens place. It works the same for any number!

Can I use this method for larger numbers too?

Absolutely! Whether it's 50, 500, or 50,000, the rule stays the same: subtract 1 to find the predecessor. The size of the number doesn't change the method.

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