Start learning →

Because 4 plus 7 is a whole number for every such pair, whole numbers are closed under:

AAddition
BAbrasion
CAnimation
DAllocation
Answer & Solution
Correct answer: A. Addition
1. The sum is still a whole number. 2. Nothing leaves the set. 3. So whole numbers are closed under addition. _Source: syllabus Mathematics Class VIII, Chapter 1, Rational Numbers._
Practise this question with Quill — Math Olympiad →

Keep practising Rational Numbers

Browse all Rational Numbers questions for Math Olympiad, or explore more Mathematics topics.

Start a Rational Numbers lesson →
Related questions
Rationals bingoType the numberSort the maths wordsHolds or failsSlice the number wordsRun the property gatesPop the closed operationsCatch the number properties