CBSE Class 8 rationalnumbers — practice questions
25 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 8 rationalnumbers in the app →A rational number is any number that can be written in the form p/q, where p and q are integers and:Which of the following is NOT a rational number?The additive identity for rational numbers is:The multiplicative identity for rational numbers is:Rational numbers are NOT closed under:Which property is shown by: (−2/3) + (3/5) = (3/5) + (−2/3)?The additive inverse of 5/8 is:The multiplicative inverse (reciprocal) of −3/7 is:Which statement is TRUE for the set of rational numbers?Compute (−2/3) × (4/5):Find 3/4 − 5/6.Find (−5/6) ÷ (2/3).Using distributivity, the value of (7/5) × (−3/12) + (7/5) × (5/12) is:Which property is used to write a × (b + c) = ab + ac for any three rational numbers a, b, c?A rational number lying between 1/4 and 1/2 is:The mean of two rational numbers a and b is (a + b)/2. The mean of 1/3 and 1/2 is:Find (−4/5) × (3/7) × (15/16) × (−14/9).Simplify using commutativity and distributivity: (2/5) × (−3/7) − (1/14) − (3/7) × (3/5)How many rational numbers exist between 1/3 and 1/2?Does the rational number 0 have a multiplicative inverse?Which of the following is the WHOLE NUMBER that is closest to 0 but is NOT a natural number?Using distributivity, find: (3/5) × [(−7/9) + (4/9)].For which rational number a is the statement 'a is its own additive inverse' TRUE?For which rational number a is the statement 'a is its own multiplicative inverse' TRUE?Three rational numbers a, b, c are given. Which of the following is ALWAYS true?