Holiday Home Work - Math, Physics, Chemistry, Biology, Computer, English Worksheets - Class Viii - 2013
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15HOLIDAY HOME-WORK
Class VIII ( 2013)
MATHS
ASSIGNMENT
1)
Draw a number line and represent the following on it
a) –3/2 b)12/5 c) –7/5 d) 3/8
2)
Compare the following
a) -9/12 and 8/-12 b) -16/20 and 20/ -25 c) -7/21 and 3/-9
e) –7/12 and 5/-8
d) -5/8 and -3/4
f) -4/9 and -3/-7
3)
Arrange the following in ascending order
a) 3/5,-7/10,8/-15,-17/-30 b) –5/11,1/-2,-6/7,-3/4 c) –4/9,5/-12,7/-18,2/-3
4)
Arrange the following in descending order
a)4/3,-5/6,-7/-12,11/-24 b) –3/10,17/30,7/-15,-11/20 c) –2,-13/6,8/-3,1/3
5)
Find five rational numbers between -7 and -5.
6)
Find twelve rational numbers between -3/4 and 5/6.
7)
Evaluate the following
a) 4/7 + -8/9 + -13/7 + 17/21
b) -7/4 + 0 + -9/5 + 19/10 + 11/14
c) 2/3 + -3/5 + 1/6 + -8/15
d) 4/3 + -5/8 + -8/13 + 9/13
8)
Simplify
a) ( -16/5 X 20/8) - ( 15/5 X -35/5) b) (-3/2 X 4/5 ) + ( 9/5 X -10/3)
9)
Simplify using the properties
a) (-4/7 X 3 /4 ) - ( -4/7 X -2/3)
b) (1/ 2 X -2/3 ) + ( 1/ 2 X -5/6 )
10)
- ( y X z) for x = 3/5 , y = 2/7 z = -1/3
11)
Solve and check the following
a) x + 7 - 16x/3 = 12 – 7x/3
b) 1x/4 + 1x/6 = 1x/2 + 3 /4
– (3x-
c) x -
-27)/3 - 3
d) 0.3x + 0.4 = 0.28 + 0.16
e) (2t-3)/5 + (t-3)/4 = (4t + 1)/7
12)
By adding 7 to a number , we obtain 49, find the number.
13)
Sum of two numbers is 75. If one exceeds the other by 5, find the number.
14)
A number consists of two digits whose sum is 8. If 18 is added to the number its digits are reversed.
Find the number.
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