Find the Predecessor: Identifying the Number Before 6700

Q: What exactly does 'predecessor' mean in math?

A predecessor is simply the number that comes immediately before another number. Think of it as the number you'd count just before reaching your target number!

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

Great question! A predecessor comes before (subtract 1), while a successor comes after (add 1). For 6700: predecessor is 6699, successor is 6701.

Q: Do negative numbers have predecessors too?

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

Q: How can I remember which operation to use?

Think of PRE-decessor as coming before. Just like pre-game comes before the game, so you go backwards by subtracting 1!

Number Predecessors with Whole Numbers

Select the predecessor of the number 6700:

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Step-by-step written solution

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Understand the problem

Select the predecessor of the number 6700:

Step-by-step solution

Let's solve this step-by-step:

Step 1: Identify the given number, which is 6700.
Step 2: Use the formula for finding the predecessor of a number, which is to subtract 1 from it. Thus, $6700 - 1 = 6699$ .
Step 3: Verify the calculation by adding 1 back to the result: $6699 + 1 = 6700$ , confirming our result is correct.

After following these steps, we conclude that the predecessor of the number 6700 is $6699$ .

Final Answer

$6699$

Key Points to Remember

Essential concepts to master this topic

Rule: The predecessor is always one less than the given number
Technique: Subtract 1 from the number: $6700 - 1 = 6699$
Check: Add 1 to your answer to get back the original: $6699 + 1 = 6700$ ✓

Common Mistakes

Avoid these frequent errors

Subtracting 10 or 100 instead of 1
Don't subtract 10 from 6700 to get 6690 or subtract 100 to get 6600! This confuses predecessors with rounding or place value operations. Always subtract exactly 1 to find the predecessor.

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 exactly does 'predecessor' mean in math?

A predecessor is simply the number that comes immediately before another number. Think of it as the number you'd count just before reaching your target number!

Is there a trick to finding predecessors of numbers ending in zeros?

Not really! Even if a number ends in multiple zeros like 6700, you still just subtract 1. So $6700 - 1 = 6699$ . The zeros don't change the rule.

What's the difference between predecessor and successor?

Great question! A predecessor comes before (subtract 1), while a successor comes after (add 1). For 6700: predecessor is 6699, successor is 6701.

Do negative numbers have predecessors too?

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

How can I remember which operation to use?

Think of PRE-decessor as coming before. Just like pre-game comes before the game, so you go backwards by subtracting 1!

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