Understanding Rounding to the Nearest Ten Thousand

Rounding to the nearest ten thousand simplifies numbers by adjusting them to the closest multiple of 10,000.

• Identify the ten thousands place: In 123,456, the digit in the ten thousands place is 2 (representing 20,000).
• Look at the thousands digit: In 123,456, it's 3. If it's 5 or more, round up; otherwise round down.
• Rounding rule: If the thousands digit is ≥ 5, increase the ten thousands digit by 1 and set all digits to the right to zero. If less than 5, keep the ten thousands digit as-is and zero out the rest.

Example: Round 123,456 to the nearest ten thousand. The thousands digit is 3 (< 5), so we round down to 120,000.

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