JAWAHAR NAVODAYA VIDYALAYA  HOTHPETH GULBARGA
                             UNIT TEST FIRST (July 2010)  
Mathematics VII                                                         Max marks:40
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QUESTIONS OF ONE MARK EACH
1) On a number line to search (+4) we should move towards……side 
          (a) Left.       (b) Right.    (c) Down.       (d) Both (a) and (b).
     2) For every a, b €N    a+b=b+a  is called………….
(a) Closer property. (b) Commutative property. (c) Associative property                (d) Identity element
    3)   For every a, b, c € I    ax(b+c)= a x b+a xc   is Known as ………. 
(a) Distributive property.  (b) Associativity  (c) Additive inverse.(d)None.
   4)  The property which is a+0 =0+a   is called…….
       (a) Identity element for multiplication.  (b)Additive inverse  
       (c) Identity element for addition.(d)None of these
  5) The fraction   25  is called …………
         (a) Proper fraction. (b) Improper Fraction.(c) Mixed fraction.(d)None.
 6. The reciprocal of     is ………..
       (a).    , (b) 1   , (c).  , (d). None of them 
7) Identify the place value of  two 5”s in 1752.752
       a) Thousand and tenth,              b) Units and tenth, 
       c) Hundred and    hundredth,    d) Tenth and hundredths
8) Find the value of  7÷ 3.5 will be  …….
     a)200 ,         b)50    c)   0.50,           d)20.
QUESTIONS OF TWO  MARKS  EACH
9)  Write one pair of a negative integer and a positive integer whose sum 
       Gives -5.
10)  Find the perimeter of an equilateral triangle whose side is 5 cm.
11. Find the product of   a)) (-1) X (-2) X (-3) X (-4). b) (-1) X (-3) X (-5).
12) Simplify:     0.5 ÷ 0.25  
           QUESTIONS OF THREE MARKS EACH
13) .Write a pair  (a, b) such that  a÷b= -3.
14)  Verify: (-30)x[13+(-3)] =[-30x13]+[-30x -3] and also Name this 
       property 
15) A car runs16kmusing 1litre of petrol. How much distance will it cover 
       using 2 liter of petrol?
16)Michael finished coloring picture in  hours. Vaibhav finished coloring
       the same picture in  hours. Who worked longer? By what fraction was 
     it longer? 
           QUESTIONS OF FOUR MARKS EACH
17)In a class of 40 students   of total students like to study English.  of the 
       total number like  to study Mathematics and remaining students like to 
       study science  
 1) How many students would like to study English?
 2) How many students would like to study Mathematics?
 3) How many students would like to study science?
18) Write the place value of 2 in the fallowing decimal number?
         a) 2.56,      b) 21.37,     c) 10.25,      d) 9.42 
19)In a class test  five marks are given for every correct answer  and (-2) 
        Marks for every incorrect answer then answer the followings
a) Radhika  answered all the questions and scored 30marks though  
                   she  got 10 correct answer
              b)Jaya also answered all questions  and scored (-12) marks though 
                   she got 4 correct answer. How many incorrect answer had they 
                   attempted?
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