ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade IX - Rational and Irrational Numbers
Question 1
1.
    • Find the position of the rational number
    • (
      -32
      5
      		 )
    • on the number line
  • K
  • I
  • G
  • L
  • S
Question 2
2.
    • Express
    • 7
      4
    • as a decimal correct to 1 decimal places
  • 1.9
  • 1.8
  • 1.6
Question 3
3.
    • Convert the non-terminating recurring decimal
    • 27.
      2
    • to rational number
  • 35
  • 247
    9
  • 27
  • 245
    11
  • 245
    9
Question 4
4.
    • Which of the following decimal numbers lie between
    • 4557.0
    • and
    • 4557.1
    • ?
  • 455.7
  • 4557.02
  • 4556.94
  • 4557.19
  • 45570.25
Question 5
5.
Which of the following symbols represent the set of Natural numbers ?
  • W
  • R
  • Q'
  • N
  • Z
Question 6
6.
    • 3
      √

      12
      8
      3
      √

      9
    • =
  • 5
    √

    1
    384
  • 3
    √

    1
    128
  • 1
    384
  • 3
    √

    -1
    384
  • 3
    √

    1
    384
Question 7
7.
The decimal number 1.598 lies between
  • {-1,0}
  • {3,4}
  • {1,2}
  • {2,3}
  • {0,1}
Question 8
8.
    • If

      • √

        2
        = 1.4142,

      • √

        3
        = 1.7321,

      • √

        5
        = 2.2361,

      • √

        7
        = 2.6458,
    • the value of
    • (
      −
      5

      √

      7
      )

      √

      4
    • =
  • -6.614
  • 0.386
  • 1.386
  • 4.386
Question 9
9.
    • Express
    • 85
      54
    • as a decimal correct to 1 decimal places
  • 1.5
  • 1.7
  • 1.8
  • 1.6
  • 1.4
Question 10
10.
    • The rationalising factor of
    • (
      −
      3

      √

      7
      −
      7

      √

      9
      )
    • =
  • (
    −
    3

    √

    10
    +
    21
    )
  • (
    −
    3

    √

    7
    +
    22
    )
  • (
    −
    3

    √

    7
    +
    21
    )
  • (
    −
    3

    √

    7
    +
    20
    )
  • (
    −
    3

    √

    5
    +
    21
    )