TS 10th class Maths 1st chapter

                           1. Real numbers 

Exerscise-1.3

1.Write the following rational numbers in their decimal form and also state which are terminating and which are non-terminating, repeating decimal.\

(1) 3/8   (2) 229/400   (3) 4(1/5)   (4) 2/11  (5)8/125

2. Without performing division, state whether the following rational numbers will have a terminating decimal form or a non-terminating ,repeating decimal form.

(1) 13/3125    (2) 11/12    (3) 64/455    (4) 15/1600    (5) 29/343

(6) 23/2^3.5^2     (7) 129/2^2.5^7.7^5    (8) 9/15    (9) 36/100   

(10) 77/210

3. Write the following rationals in decimal form using Theorem1.4

(1) 13/25    (2) 15/16   (3) 23/2^3.5^2   (4) 7218/3^2.5^2

4. Express the following decimals in the form of  p/q and write the prime factors of q. What do you observe?

(1) 43.123   (2) 0.1201201  (3) 43.12   (4) 0.63