Rational Numbers – Class 8/ Worksheets

Chapter 1 of CBSE/NCERT Class 8 Mathematics is about Rational numbers. Here in this lesson you can find out practice problems for this chapter.

CBSE CLASS 8 MATHEMATICS
Rational Numbers – Chapter 1/ Worksheets
Fill in the blanks:

1. ———- is also known as negative of a number.
2. Multiplicative inverse is also called as ————–
3. Additive inverse of 0 is —————-
4. A rational number between ½ and 1 is ————
5. There are ———– rational numbers between any two given rational numbers.
   Answer the following:
6. Write the additive inverse of (-1/4)?
7. Write five rational numbers less than -2?
8. Name the property under multiplication used in each of the following:
   a) (-3/4) x (4/-3) = 1
   b) (-1/2) x 1 = 1 x (-1/2) = -1/2
9. Write in ascending order: -4/5, -7/5, 0, 8/5, 1/5, -10/5
10. Multiply 4/13 by the reciprocal of (-4/26)?

ANSWERS:

1. Additive Inverse
2. Reciprocal
3. 0
4. ¾
5. Countless
6. ¼ is the additive inverse of (-1/4) because (-1/4) + ¼ = 0
7. There are countless rational numbers less than -2.
   Some of the rational numbers are -3, -4, -5, -6, -7
8. a) Multiplicative inverse
   b) 1 is the multiplicative identity
9. -10/5, -7/5, -4/5, 0, 1/5, 8/5
10. Reciprocal of (-4/26) is (-26/4)
    Product = (4/13) x (-26/4) = -2.