SSC Board Practice

Class VI Class VII Class VIII Class IX Class X
SSC Grade VIII - Rational Numbers
Question 1
1.
Which of the following are true?
a)
rational numbers are closed under addition
b)
rational numbers are closed under subtraction
c)
rational numbers are closed under division
d)
rational numbers are closed under multiplication
  • {c,a}
  • {a,b,d}
  • {c,a,b}
  • {c,d}
  • {c,b}
Question 2
2.
The decimal number 8.87 lies between
  • {8.67,8.77}
  • {8.77,8.97}
  • {8.85,8.86}
  • {8.88,8.89}
  • {8.97,9.07}
Question 3
3.
The decimal number -2.085 lies between
  • {-2.087,-2.086}
  • {-2.095,-2.075}
  • {-2.084,-2.083}
  • {-2.105,-2.095}
  • {-2.075,-2.065}
Question 4
4.
Which of the following is true?
  • 13
    15
    +
    4
    12
    =
    8
    15
  • 18
    19
    +
    10
    20
    =
    17
    38
  • 12
    20
    +
    1
    7
    =
    16
    35
  • 15
    17
    +
    5
    10
    =
    13
    34
  • 19
    20
    +
    2
    13
    =
    287
    260
Question 5
5.
    • 12
    • ✕
    • 4
      5
    • = ______
  • 48
    5
  • 48
    7
  • 10
  • 16
  • 46
    5
Question 6
6.
    • 9
    • +
    • 1
      4
    • = ______
  • 37
    6
  • 35
    4
  • 37
    2
  • 39
    4
  • 37
    4
Question 7
7.
Which of the following are true?
a)
17
15
÷
(
79
11
÷
13
11
)
=
(
17
15
÷
79
11
)
÷
13
11
b)
7
17
✕
(
79
11
✕
11
12
)
=
(
7
17
✕
79
11
)
✕
11
12
c)
17
15
−
(
16
3
−
1
18
)
=
(
17
15
−
16
3
)
−
1
18
d)
7
17
+
(
16
3
+
14
19
)
=
(
7
17
+
16
3
)
+
14
19
  • {a,b}
  • {a,d,b}
  • {c,d}
  • {b,d}
  • {a,c,b}
Question 8
8.
    • Find the missing value in
    • 10
      15
    • ÷
    • ______ =
    • 38
      9
  • 5
    19
  • 3
    17
  • 3
    19
  • 1
    19
  • 1
    7
Question 9
9.
    • Express
    • 3
      50
    • as a decimal correct to 2 decimal places
  • 0.01
  • 0.16
  • 0.6
  • -0.14
  • 0.06
Question 10
10.
    • Express
    • 1
      9
    • as a decimal correct to 4 decimal places
  • 0.0111
  • 0.3111
  • -0.0889
  • 0.1111
  • 0.2111