can anyone send me worksheet of rational number for class 8. and pls send me tommorow I have exam I need to practice so
Answers
Answer:
1. Associative property is not followed in ……………… .
(a) whole numbers
(b) integers
(c) natural numbers
(d) none of these
2. …………………… is the identity for the addition of rational numbers.
(a) 1
(b) 0
(c) -1
(d) \frac{1}{2}
3. ………………… is the multiplicative identity for rational numbers.
(a) 1
(b) 0
(c) -1
(d) \frac{1}{2}
4. The additive inverse of \frac{7}{5} is:
(a) 1
(b) 0
(c) – \frac{7}{5}
(d) \frac{7}{5}
5. What number should be added to \frac{7}{12} to get \frac{4}{15}?
(a) – \frac{19}{60}
(b) – \frac{11}{30}
(c) \frac{51}{60}
(d) \frac{1}{20}
6. What number should be subtracted from – \frac{3}{5} to get -2?
(a) – \frac{7}{5}
(b) – \frac{13}{5}
(c) \frac{13}{5}
(d) \frac{7}{5}
7. Which of the rational numbers CBSE Class 8 Maths Rational Number Worksheets 1 is the smallest?
(a) \frac{-5}{16}
(b) \frac{-13}{24}
(c) \frac{3}{-4}
(d) \frac{7}{-12}
8. Rational number \frac{3}{40} is equal to:
(a) 0.75
(b) 0.12
(c) 0.012
(d) 0.075
9. A rational number between \frac{3}{5} and \frac{4}{5} is
(a) \frac{7}{5}
(b) \frac{7}{10}
(c) \frac{3}{10}
(d) \frac{4}{10}
10. Find x such that \frac{3}{5}=\frac{x}{-25}
(a) -5
(b) -15
(c) -15
(d) none of these
11. Find x such that \frac{-48}{x} = 2
(a) 24
(b) -12
(c) -24
(d) none of these
12. Find x such that \frac{-3}{8} and \frac{x}{-24} are equivalent rational numbers.
(a) 3
(b) 9
(c) 8
(d) none of these
13. Find the value of \frac{3}{-5} \times \frac{-5}{-3}
(a) -1
(b) 0
(c) 1
(d) none of these
14. The equivalent rational number of \frac{-6}{5} is
(a) \frac{-3}{5}
(b) \frac{12}{10}
(c) \frac{-12}{10}
(d) none of these
15. Fill in the boxes with the correct symbol: \frac{5}{-11} \square \frac{-5}{11}
(a) >
(b) <
(c) =
(d) none of these
16. Fill in the boxes with the correct symbol: \frac{1}{-3} \square \frac{-1}{4}
(a) >
(b) <
(c) =
(d) none of these
17. Rewrite the rational number \frac{-18}{48} in the simplest form.
(a) \frac{-9}{24}
(b) \frac{-3}{8}
(c) \frac{3}{8}
(d) none of these
18. Rewrite the rational number \frac{44}{-72} in the simplest form
(a) \frac{22}{-36}
(b) \frac{11}{-18}
(c) \frac{11}{18}
(d) none of these
19. Write the next rational number in the pattern: CBSE Class 8 Maths Rational Number Worksheets 2
(a) \frac{12}{25}
(b) \frac{15}{25}
(c) \frac{-15}{25}
(d) none of these
20. Write the next rational number in the pattern: CBSE Class 8 Maths Rational Number Worksheets 3
(a) \frac{-5}{-30}
(b) \frac{5}{-30}
(c) \frac{4}{-30}
(d) none of these
Class 8 Maths Rational Number Fill In The Blanks
1. Zero has ………………… reciprocal.
2. The numbers ……………….. and ……………….. are their own reciprocals.
3. The reciprocal of -5 is …………………… .
4. Reciprocal of \frac{1}{x}, where x ‰ 0 is ………………. .
5. The product of two rational number is always a ……………. .
6. The reciprocal of a positive rational number is ……………… .
7. The additive inverse of \frac{-a}{b} is ………………… .
8. Reciprocal of \frac{-3}{4} is ……………… .
9. The reciprocal of a negative rational number is ……………… rational number.
10. The rational number ……………… is equal to its negative.