What is 18.379 rounded to the nearest whole number?
A19.0
B18.4
C17.0
D18.0
Answer & Solution
Correct answer: D. 18.0
1. Locate the ones place in 18.379, which holds the digit 8.
2. Look at the digit to its right, which is 3.
3. Since 3 is less than 5, the ones digit stays the same.
4. Remove all digits after the decimal point.
5. This gives 18, so 18.379 rounded to the nearest whole number is 18.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 5 "Decimals", section 5.1 Decimals_
Keep practising Decimals
Browse all Decimals questions for PSLE, or explore more Mathematics topics.
Related questions
Complete the decimal rulesTrue or false: decimalsSort the decimal place valuesWork the decimal placesStop on the right place valueRing up the right amountA circle has a radius of 42.5 centimeters. Using pi as approximately 3.14, what is its areA circle has a radius of 10 centimeters. Using pi as approximately 3.14, what is its area?