ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade IX - Rational and Irrational Numbers
Question 1
1.
Which of the following symbols represent the set of Real numbers ?
  • N
  • Z
  • Q'
  • Q
  • R
Question 2
2.
    • Find the position of the rational number
    • 15
      7
    • on the number line
  • N
  • D
  • M
  • K
  • S
Question 3
3.
    • Express
    • 4
      9
    • as a decimal correct to 2 decimal places
  • 0.04
  • 0.44
  • 4.44
  • 0.54
  • 0.24
Question 4
4.
1.335 =
  • 267
    2000
  • 267
    2
  • 267
    20
  • 267
    20000
  • 267
    200
Question 5
5.
    • (
      −

      √

      2
      −
      9

      √

      7
      −
      6
      3
      √

      8
      )
    • +
    • (
      −
      3
      3
      √

      3
      +
      4
      3
      √

      6
      +
      2

      √

      8
      )
    • =
  • (
    3

    √

    -1
    −
    9

    √

    7
    −
    6
    3
    √

    8
    −
    3
    3
    √

    3
    +
    4
    3
    √

    6
    )
  • (
    3

    √

    2
    −
    9

    √

    7
    −
    6
    5
    √

    8
    −
    3
    3
    √

    3
    +
    4
    3
    √

    6
    )
  • (
    3

    √

    2
    −
    9
    4
    √

    7
    −
    6
    3
    √

    8
    −
    3
    3
    √

    3
    +
    4
    3
    √

    6
    )
  • (
    3

    √

    2
    −
    9

    √

    7
    −
    6
    3
    √

    8
    −
    3
    3
    √

    3
    +
    4
    3
    √

    6
    )
  • (
    3

    √

    2
    −
    9

    √

    7
    −
    6
    3
    √

    8
    −
    3
    3
    √

    6
    +
    4
    3
    √

    6
    )
Question 6
6.
The decimal number 0.530 lies between
  • {1,2}
  • {0,1}
  • {-2,-1}
  • {2,3}
  • {-1,0}
Question 7
7.
    • (
      −
      4

      √

      2
      −
      6

      √

      5
      +
      6

      √

      7
      )
    • −
    • (
      3

      √

      8
      +
      4
      −
      9

      √

      6
      )
    • =
  • (
    −
    10

    √

    -1
    −
    6

    √

    5
    +
    6

    √

    7
    −
    4
    +
    9

    √

    6
    )
  • (
    −
    10

    √

    2
    −
    6

    √

    5
    +
    6

    √

    7
    −
    4
    +
    9

    √

    6
    )
  • (
    −
    10

    √

    2
    −
    6

    √

    5
    +
    6

    √

    7
    −
    1
    +
    9

    √

    6
    )
  • (
    −
    10

    √

    2
    −
    6

    √

    5
    +
    6
    4
    √

    7
    −
    4
    +
    9

    √

    6
    )
  • (
    −
    10

    √

    2
    −
    6
    4
    √

    5
    +
    6

    √

    7
    −
    4
    +
    9

    √

    6
    )
Question 8
8.
    • Which of the following is an irrational number?
  • 30
  • (-8)

  • √

    80
  • 22.5556
  • 9
    15
Question 9
9.
Which of the following symbols represent the set of Irrational numbers ?
  • Q
  • Z
  • R
  • W
  • Q'
Question 10
10.
    • Express
    • 10
      3
    • as a decimal correct to 2 decimal places
  • 3.53
  • 3.33
  • 3.23
  • 3.43
  • 3.13