# Free CBSE Class X Maths Real numbers Worksheets

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## Sample CBSE Class X Maths Real numbers Worksheet Questions

1.

Choose the correct option:   " + " is _______.

1. Binary operation on R 2. Not a binary operation on R 3. A binary operation in Q^c 4. Not a binary operation in E
2.

Transitive property of order of real numbers is that for all a, b,c belong R.

1. a < b É? b < c this imly a < c 2. a < b É? b < c this imply a = c 3. a < b É? b < c this imply aâ?¥c 4. a < bÉ? b < c this imply a > c
3.

For all a,b belong R, $a\neq&space;0,&space;b\neq&space;0,&space;1/a&space;>1/b$ this imply

1. a < b 2. a > b 3. a = b 4. 1â??a < 1â??b
4.

Additive property of order of real number is for all a, b, c, d belong to R.

1. a > b É? c > d this imply a + c = b + d 2. a > b É? c > d this imply a + c < b + d 3. a > b É? c > d this imply a + d > b + d 4. a > b É? c > d this imply c > b + d
5.

For all a,b belong R, $a&space;\neq&space;0,&space;b\neq&space;0,&space;a>&space;b$ this imply

1. a < b 2. a = b 3. 1/a < 1â??b 4. 1â??a > 1â??b
6.

Fill in the blanks:  x-2 is equal to _________.

7.

Prove that 7/20 is terminating decimal.

8.

Prove that $6&space;+&space;10\sqrt{11}$ is an irrational number.

9.

Prove that $n^{2}&space;-&space;n$ is even f or every positive integer n.

10.

Check whether $6^{n}$ can end with the digit 0 for any natural number n.

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