Wednesday, May 1, 2013

HOLIDAY HOMEWORK IN MATHS FOR STD VIII

HOLIDAY HOMEWORK   IN MATHS FOR STD VIII
Q-1 Using appropriate properties find  (i)  -2/3  x  3/5 + 5/2 - 3/5 x 1/6
 (ii) 2/5 x (-3/7)- 1/6 x 3/2 +1/14x 2/5
Q-2 Write the additive inverse of the following: (i)2/8 (ii) -5/8 
(iii) -6/-5 (iv) 2/-9 (v)19/-6
Q-3   Verify that -(-x) = x for x = 11/15  and  x = 13/17
Q-4 Find the multiplicative inverse of the following : -13, -13/19, 1/5, -5/8 x-3/7 , -1x-2/5, , -1
Q -5 Name the property under multiplication used  in each of the following:
(i) -4/5 x1 = 1x -4/5 = -4/5  (ii) -13/17x -2/7 = -2/7 x -13/17 
 (iii) -19/29 x 29/-19 = 1
Q-6 Multiply 6/13 by the reciprocal of  -7/16
Q-7 What property allow you to compute: 1/3 x (6 x4/3) as  ( 1/3 x 6) x 4/3
Q -8 Is 8/9 the multiplicative inverse  of -1 1/8 ? Why?
Q-9 Is 0.3 the multiplicative of  3 1/3? Why?
Q 10 Write : (i) The rational number that doesnot have a reciprocal.
(ii) The rational numbers that are equal to their reciprocals
 (iii) The rational number that is equal to its negative
Q -11 Fill in the blanks: (i) Zero has ---- reciprocal.
 (ii) The numbers ---- and ----- are their own reciprocals.
(iii) The reciprocal of -5 is ---- (iv) Reciprocal of 1/x where x≠ 0 is ----
(iv)The product of two rational numbers is always a --------
(v) The reciprocal of  a  positive rational number is ------
Q-12 Represent  -2/11, -5/11, -9/11 on a number line
Q- 13 Write five rational numbers which are smaller than 2
Q-14 Find ten rational numbers between -2/5 and 1/2
Q -15  Find five rational numbers between: 2/3 and 4/5; -3/2 and 5/3; 1/4 and 1/2
Q -16 Find five rational numbers greater than -2

Tuesday, April 30, 2013

Summer vacation homework - Maths - linear equation in one variable


Std-8   Sub- Maths

1.       Linear equation in one variable

2.       Shapes

Q-1 Solve the following equations:

1.       2x-3=7

2.       (x/3) +(3/2) =(-5/12)

3.       2x+9=4

4.       X-(3/7) =(-14/3)

5.       X+(11/4) = (13/2)

6.       (15/4) – 7p = 9

7.       (3x/4) + 3  = 18

8.       6.6x – 3.2 = 10

9.       8 – 3x = (-10)

10.    X + (3/4) = (27/4)

 

Q-2 Word problems:

1.       The digits of a two-digit number differ by 3.If the digits are interchanged, and the resulting number is added to the original number, we get 121. Find the original number.

2.       Sonam is twice as old as Manali.Five years ago Sonam’s age was three times Manali’s age. Find their present ages.

3.       If the length and the breadth of a rectangular field are in the ratio 6:4. Find the length and the breadth if the perimeter of the rectangle is 150unit.

 

Q-3  Draw the solid shapes and write the number of faces, vertices and edges

1.       Cube

2.       Cuboid

3.       Cone

4.       Cylinder

5.       Sphere

Monday, April 29, 2013

हिंदी- गर्मी की छुट्टियों का गृहकार्य


किसी एक विषय पर अनुछेद लिखो-

1.       शिक्षा पर तकनीक ((((((((((((((टेक्नोलोजी) का प्रभाव
2.       इस वर्ष की गर्मी की छुट्टियों में आपका अनुभव

किसी एक विषय पर पत्र लिखो-

1.      आपका नाम विनिता है। आप ए-502, नवदीप भवन, शाहजहाँ रोड, आगरा में रहती हैं। आपके घर के आस-पास काफी पानी भरा रहता है। जिससे चारों तरफ बीमारियाँ फैल रही है। नगर निगम को सूचित करते हुये शिकायती पत्र लिखिये।

2.      आप रोहन कुमार महात्मा गांधी विद्यालय, राजकोट के कक्षा-8 के छात्र है। आप विद्यालय में वाद- विवाद प्रतियोगिता आयोजित करना चाहते है। इस बारे में अपने प्रधानाचार्य को सूचित करें। 

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Friday, April 26, 2013

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