High School

The following numbers have been rounded to the hundredths place. Which one is incorrect?

A) 3.45
B) 2.57
C) 1.69
D) 4.23

Answer :

Final Answer:

The incorrect rounded number is Option B: 2.57.

Explanation:

When rounding a number to the hundredths place, we look at the digit in the thousandths place. If it is 5 or greater, we round up the hundredths place; otherwise, we leave it unchanged. Let's check the rounding for each option:

A) 3.45 - Correct (digit in thousandths place is 0)

B) 2.57 - Incorrect (digit in thousandths place is 7, should round up to 2.58)

C) 1.69 - Correct (digit in thousandths place is 0)

D) 4.23 - Correct (digit in thousandths place is 0)

Therefore, the incorrect rounded number is in Option B. The correct rounded value for 2.57 to the hundredths place is 2.58.

It's crucial to pay attention to the rounding rules to ensure accurate representation, especially when working with precise data or calculations. In this case, understanding the rounding process helps identify the option where an error occurred, leading to the selection of Option B as the incorrect rounded number.