Complete the Number Sequence: Finding Missing Terms Around 4400

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

The predecessor is the number that comes before (subtract 1), and the successor is the number that comes after (add 1). Think of it like counting: 4399, 4400, 4401.

Q: Why is 4401 not one of the answer choices?

Look carefully! The problem asks for $ \Box,4400,\Box $ but some answer choices show different patterns. Always read what the boxes are asking for and match the correct positions.

Q: How do I remember which operation to use?

Use this trick: Predecessor = Previous = subtract (-) and Successor = Subsequent = add (+). The first letters match!

Q: Can I use this method for any number?

Yes! Every whole number has exactly one predecessor (except 0) and one successor. Just add 1 or subtract 1 from any given number.

Number Sequencing with Predecessor-Successor Patterns

Fill in the missing numbers:

$\Box,4400,\Box$

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

Fill in the missing numbers:

$\Box,4400,\Box$

Step-by-step solution

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

Step 1: Identify the predecessor of 4400.
To find the predecessor, subtract 1 from 4400:
$4400 - 1 = 4399$
Step 2: Identify the successor of 4400.
To find the successor, add 1 to 4400:
$4400 + 1 = 4401$

Having followed these steps, we can conclude that the numbers we are looking for are $4399$ and $4401$ .

Thus, the solution to the problem is $4399, 4401$ .

Final Answer

$4399,4001$

Key Points to Remember

Essential concepts to master this topic

Rule: Predecessor = subtract 1, successor = add 1
Technique: For 4400: predecessor is 4400 - 1 = 4399
Check: Count forward: 4399, 4400, 4401 forms consecutive sequence ✓

Common Mistakes

Avoid these frequent errors

Confusing predecessor and successor positions
Don't put the successor (4401) in the first box and predecessor (4399) in the last box! This creates the wrong sequence order. Always remember: predecessor comes BEFORE (first box), successor comes AFTER (last box).

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?

The predecessor is the number that comes before (subtract 1), and the successor is the number that comes after (add 1). Think of it like counting: 4399, 4400, 4401.

Why is 4401 not one of the answer choices?

Look carefully! The problem asks for $\Box,4400,\Box$ but some answer choices show different patterns. Always read what the boxes are asking for and match the correct positions.

How do I remember which operation to use?

Use this trick: Predecessor = Previous = subtract (-) and Successor = Subsequent = add (+). The first letters match!

What if the number has zeros at the end?

It works the same way! For 4400: predecessor is 4399 (borrow from the hundreds place), successor is 4401. Just be careful with your place value when subtracting.

Can I use this method for any number?

Yes! Every whole number has exactly one predecessor (except 0) and one successor. Just add 1 or subtract 1 from any given number.

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