Round 23,658 to the nearest hundred.

1. Locate the hundreds place in 23,658; it holds the digit 6. 2. Underline the digit to its right, the tens digit, which is 5. 3. Since 5 is greater than or equal to 5, add 1 to the hundreds digit, making it 7. 4. Replace the digits to the right with zeros to get 23,700. 5. Keeping the 6 unchanged gives 23,600, the trap for forgetting the round-up rule. _Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.1 Introduction to Whole Numbers_