Alg_exp_wks_8th

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SMT. SULOCHANADEVI SINGHANIA SCHOOL, THANE

STD: 8TH

  SUB: Maths Worksheet TERM I 2015-16

Algebraic Expression

1. 

Ident!" #ono#a$s% &no#a$s and trno#a$s !ro# the !o$$o'n( a$(e&ra)

e*+ressons:

,  *2  2" , / 5* , , , + / +

2 

2.  Wh)h o! the !o$$o'n( e*+ressons are +o$"no#a$s3

a,  *2

4 * 4 12 &, 4 */  ), 4 * 4 / d, 5 e, *

-/  *

24 * 4 /

/.  State the de(ree o! the !o$$o'n( +o$"no#a$s:

/* % /* 4 5" % 5*2 4 * 4 8 % *

/ 4 8*

"

  *"

2  % 2a

/ 4 /a& 6a

 4 &

.  7nd the a$e o! 9+- s2, 2 9 r- s

2,

5.  ;dd the !o$$o'n( , a-/&4) % 2a-5&46) % -/a 42&-)

, -1-5*4*

2

% 2*

2

4*- % /*

2

-*

2

4

6. 

S&tra)t: , --/+4-r !ro# 2+-48-r , /* 4 *2

- !ro# * 4 /*

2  * 4 5

.  What #st &e added to the s# o! /*-"4 and -42"-5* to (et *-8"4/ 3

8.  What #st &e s&tra)ted !ro# /*2 4 * 4 1 to (et 2*

2  *4 /3

.  M$t+$"- ,9 +r , 9 + % r2,

, 9 2a& ,9 a& - a2

- 5&2

- /a4&,

, 92a 4 /&, 9/a - 2&,

, 95 - 2* 4 6*2, 9/*

2- 5* 4 2,

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10. Dde-

, 

28a/

&2

)2

b - 21a&/

)5

 ,  6a

5- a

/4 8a

2- 12a 4 / b a

/ 

, 8 1* 12*2

b  / 2*

, 15a2

- 16a/  4 a

2 - 10a 4 6 b  /a - 1

, 

5* - 6*

/ 4 8*

2 - /* 42 b *

2 - /* 41

, 

</ 41 b +41

11. 7nd the otent and re#ander n ea)h o! the !o$$o'n( :

,  96*2 4 /* 4 10 , 92* 4 /,

,  9*5 4 *

  2*

/  10*

2 4 1/* 6, 9 *

2 4 2* /,

12.  S#+$!"

,  +92-5r, /=/>/+9-2r,-r? -2+@

,  -5&2 =-/a

2 - >2a

2 -/a9&-2a,-5&9a-/a-&,?@

, *-=8*-2*-/"-2>*-92=*-92*-*-",?@

1/. 

; #an re)ees Rs. 25* 10 as hs sa$ar" and Rs. 2/* 20 as &ons. He

&o(ht a (!t !or hs '!e )ostn( Rs. /* 10 and a (!t !or hs da(hter !or Rs.

5* 0. Ho' #)h does he hae3

1. 

I! one note&ook )osts Rs. *2  1/* 4 0% 'hat s the )ost o! 9*-5, note&ook3

15.  The area o! a re)tan($ar !e$d s a2  1a 4 0. 7nd the 'dth o! the

re)tan($e ! ts $en(th s a-.

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