Maths Assignment Class 9th Chapter 1
Math Assignment for Class IX Ch -1, Number System strictly according to the CBSE syllabus. Extra questions based on the topic Number System.
MATHEMATICS ASSIGNMENT CLASS IX
NUMBER SYSTEM
Q1- Insert 5 rational and 5 irrational numbers between
(a) 7 & 8, (b) 2 & 3.2, (c) 2.7 & 6.32,
Q2- Represent
the following on the number line.
\:%20\:%202+\sqrt{2},\:%20\:%202+\sqrt{3},\:%20\:%202+\sqrt{5})
Q3- Express the following in p/q form
Q 4: Evaluate
(a) 1⁸ × 3⁰ × 5³ × 2² Ans; 500,
(b) 4-3
× 4⁸ ÷ 4² Ans; 64
(c) 3⁷ ÷ 3⁴ × 3-6 Ans
(d) 3-4 × 3-5 ÷ 3¹⁰ Ans; 3-19
Q5- Evaluate
Q6. If
, then find the value of the followings
Q7. Rationalize the denominator of
Q 8. Rationalize the following and find the value of a and b
\:%20\:%20\:%20\frac{\sqrt{2}+\sqrt{3}}{3\sqrt{2}-2\sqrt{3}}=a-b\sqrt{6}\:%20\:%20\:%20\left%20[%20Ans:\:%20a=2,\:%20b=-\frac{5}{6}%20\right%20])
\:%20\:%20\:%20\frac{\sqrt{5}+\sqrt{3}}{\sqrt{5}-\sqrt{3}}=a-b\sqrt{15}\:%20\:%20\:%20\left%20[%20Ans:\:%20a=4,\:%20b=-1%20\right%20])
Q 9. Simplify the followings
\:%20\:%20\:%20(2\sqrt{7}-3\sqrt{5})(6\sqrt{5}+5\sqrt{7})\:%20\:%20\:%20\left%20[%20Ans:\:-20-3\sqrt{35}%20\right%20])
Q10 Show that 0.142857142857….= 
Q11- Locate
on the number line.
Q 12. Find the value of a and b if

Q 13. Show that :
Q 14. If x =
, y =
find x² + y².
[ans; 98]
Q 15 Find the value of a and b if
Q 16. Simplify:
[Ans; 0]
Q 17. Simplify:
[Ans; 1]
Q 18. Rationalize the denominator of

Q 19. 
Q 20. If
= 3.162, then find the value of
[Ans; 0.3162] Q 21. If 27ˣ =
, then find x. [Ans; 1/2] Q 22. Simplify [5(81/3+271/3)³]1/4 . [Ans; 5]
Q 23. Simplify- (1³ + 2³ + 3³)1/2. [Ans; 6]
Q 24. If
(5x-3)(32x-8) = 225 find x. [Ans; 5]
Q 25.
Prove that : 
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