KNOWLEDGE IS POWER: 2011

7/15/11

FA-1 MATHEMATICS VIII

FORMATIVE ASSEMENT I JULY2011

JAWAHAR NAVODAYA VIDYALAYA HOTHPETH GULBARGA
FORMATIVE TEST FIRST JULY 2011)
Mathematics: VIII Max marks:50

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QUESTIONS OF ONE MARK EACH

1. The property of a+b =b+a is known as :
a) Closer property b) commutative property
c) Inverse property d) property of identity
2. The product of two rational number is always ……
a) Irrational b) 2 Rational c) Neither rational nor
Irrational d) None these
3. The additive inverse of - is -------.
a) - b) - c) d)
4. Identify the monamial among the fallowings:
a) 4xyz2 b) xy+z c) z2y+x2 d) z2+2
5. If 5x-3 =2 then value of x will be …..
a)2. b) -1. c) 1 d) 10
6. The sum of 24xyz, -10yxz, -14zxy. Will give ….
a) 48 xyz b)-48xyz c) 0 d) None of them

QUESTIONS OF TWO MARKS EACH
7. Obtain the value of x: 2x-1 = 14 - x
8. Find the multiplicative inverse of and -
9. Obtain the volume of rectangular box whose length, breadth, and height are 4xy, 5yz, 3zx.
10. Add: p(p-q), q(q –r), r(r-p)
11. The sum of two consecutive natural number is 109 find the numbers .
QUESTIONS OF THREE MARKS EACH

12. Obtain any five rational numbers between and
13. Find the product of ( 2x-3y) (4x2-6xy+9y2) and find its value when x=2 and y=1
14. Simplify: (x2+7)(x2-5) +2(x2 +15).