What is 145.249 rounded to the nearest tenth?

• A. 145.2
• B. 145.3
• C. 145.25
• D. 145.0

Answer: (A)

Rounding to the nearest tenth means looking at the hundredths digit to decide whether to keep the tenths digit or increase it by one. In 145.249, the tenths digit is 2 and the hundredths digit is 4. Since 4 is less than 5, we don’t raise the tenths digit, so it stays 2. The value rounds to 145.2. The thousandths and beyond don’t affect this rounding. If the hundredths digit were 5 or more, it would round up to 145.3.