Rational Numbers
Exercise: 1.1
1). Name the property under multiplication used in each of the following.
2). Tell what property allows you to compute
3). The product of two rational numbers is always a rational number.
Additional Problems For Practice
1). Write the additive inverse of each of the following.
2). Find the multiplicative inverse of the following.
3). Write
(i) The rational number that does not have a reciprocal.
Ans: 0.
(ii) The rational numbers that are equal to their reciprocals.
Ans: 1 and -1
(iii) The rational number that is equal to its negative.
Does not exist.
4). Fill in the blanks.
(i) Zero has no reciprocal.
(ii) The numbers 1 and –1 are their own reciprocals
(iii) The reciprocal of – 5 is –1/5.
(iv) Reciprocal of 1/x where x ≠ 0 is x.
(v) The product of two rational numbers is always a rational number.
(vi) The reciprocal of a positive rational number is positive.
Click here for the solutions of Std 8 Maths
1). Rational Numbers
2). Linear Equations in One Variable
3). Understanding Quadrilaterals
4). Data Handling
