Download SUMMATIVE ASSESMENT - I (2011-2012) Subject: MATHEMATICS

SUMMATIVE ASSESMENT - I (2011-2012)
Subject: MATHEMATICS
Grade:
VIII
SA1MAT0811SET1QP
Max. Marks: 80
Time: 3Hours
16-Oct-2011
General Instructions:
 This question paper consists of 5 printed pages.
 All questions in section A carry 1 mark each
 All questions in section B carry 2 marks each
 All questions in section C carry 3 marks each
 All questions in section D carry 4 marks each
 All answers to be written in the answer sheet provided.
SECTION A
1.
If one side of a square is (a+2) cm, then its p erimeter will be________.
a) (x+12)cm
2.
c) (a+2) 2 cm
d) (4a+8)cm.
If n is an even positive integer, then ( -1) n is equal to ___________.
a) -1
3.
b) (3a+6) cm
b) 1
c) 0
d) None.
The number of times a particular observation occurs in a given data is called
its _____.
a) range
4.
b) raw data
c) frequency
d) class mark.
A parallelogram having all sides equal is called _______.
a) A trapezium
b) A rhombus
Page 1 of 4
c) A rectangle
d) A triangle.
5.
For a solid shape if the number of edges is 5 and the number of vertices is 3
then the number of faces is______.
a) 5
b) 6
c) 4
d) 2.
SECTION-B
6.
Represent
3
on the number line.
8
7.
Write a Pythagorean triplet whose one member is 16.
8.
Find the smallest number by which 392 must be multiplied to obtain a perfect
cube?
9.
Solve using identity (3a 2 +4) (3a 2 – 7).
10.
Find the product of ( 3pq +6q 2 )
11.
Find the value of ( 8 0 + 5 - 1 ) x 2 2 ?
12.
Write in standard form a) 0.000029
13.
A bag has 3 red and 4 yellow identic al balls. A ball is drawn from the bag at
and
(1pq – 2q 2 )?
b) 7060000.
random. What is the probability of getting
a) red ball
b) yellow ball.
14.
Find the measure of each exterior angle of a regular polygon of 9 sides?
15.
Find the square root of 256 by prime factorizatio n method?
SECTION-C
16.
Find using appropriate properties
3  5 1 3 5 3

   
5  8  6 2 16 5
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–x 2 y 2 + 5( y 2 – 3xy) from -7xy +3y 2 -13x 2 y 2 .
17.
Subtract
18.
The number of children in 30 families of a locality is as follows:
1,2,2,3,4,5,4,4,5,3,1,2,1,2 ,1,2,5,4,3,1,3,2,3,2,1,1,4,2,3,4. Prepare a frequency
distribution table for this data.
19.
From the following figure find the value of x+ y + z.
z
600
900
x
y
20.
Find x so that (-4) x + 1 x (-4) 5 = (-4) 1 2 .
SECTION-D
21.
22.
5
Simplify
5
3  10  625  t
55  6 5  t 8
4
.
Find four rational numbers between
1
3
and .
4
5
23.
Find the greatest number of five digits which is a perfect square and also find
its square root?
24.
What is the least number that 576 must be multiplied to make it a perfect
cube?
25.
Show that (9a – 5b)
2
+ 180ab = (9a + 5b ) 2 .
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26.
Simplify (x 2 – y 2 x)
27.
Following are the marks secured by
Subject
Hindi
Mathematics
English
Science
Social Studies
Arabic
Construct a pie chart to show the
28.
Draw a histogram to represent the follo wing data:
Marks Obtained
No of
students
10-20
10
20-30
15
30-40
25
40-50
5
50-60
20
7056 sunflower plants are to be planted in a garden in such a way that each
row contains as many plants as the number of rows. Find the number of rows
and the number of plants in each row?
From the parallelogram ABCD find a and b?
29.
30.
2
+ 2x 3 y 2 .
Reshma in an examination (out of 900)
Marks
100
140
120
120
110
130
given data.
D
C
18
a+b
16
a+8
A
B
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