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

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 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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