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1 st Preparatory Part (1) I) Choose: 1) The multiplicative inverse of () is ……………… a) () b) () c) () d) () 2) Third of 3 20 is ……………… a) 3 10 b) 3 19 c) 3 18 d) 60 3) If 2x = 12 , then 3x = ……………… a) 6 b) 4 c) 3 d) 18 4) If: (0.0005) 2 = 25 × 10 n ,
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    1   Second term inal Revision 1 st  Preparatory   Part (1) I) Choose: 1) The multiplicative inverse of       is ………………  a)       b)       c)       d)       2) Third of 3 20   is ………………  a) 3 10  b) 3 19  c) 3 18  d) 60 3) If 2x = 12 , then 3x = ………………  a) 6 b) 4 c) 3 d) 18 4) If: (0.0005) 2  = 25 ×  10 n  , then n = ………………  a) 4 b) 8 c) -8 d) -6 5) If x = y , then      equals ………………  a) 1 b) 0 c)   d)   6) The additive inverse of      is ………………  a)   b)   c) -1 d) 1 7) Half of 2 20  = ………………  a) 2 10  b) 2 21  c) 2 19  d) 40 8) Quarter of 4 20  = ………………  a) 4 5  b) 4 10  c) 4 19  d) 2 10  9) The multiplicative inverse of the number     is ………………  a)   b)   c)   d)       2   Second term inal Revision 1 st  Preparatory 10) 3 10  + 3 10  + 3 10   = ………………  a) 3 10  b) 3 30  c) 3 11  d) 9 10  11)       ÷         = ………………  a)   b)    c)    d)   12) If     =     , then   = ………………  a) zero b) 1 c) 9 d)  –  4 13)     = ………………  a)   b)  –  9 c)    d) 9 14) If x = y , then 5 y  –  x = ………………  a) zero b) 4 c) 5 d) 1 (2) Complete: 1) The additive inverse of      is ………………  2) If 0.000035 = 3.5 ×  10 k  , then k = ………………  3) 3 ×  7  –  15 ÷  3 = ………………  4) 3x 0   = ………………  5) If x =   , y =   , then (x  –  y) -1  = ………………  6)   ,   ,    , ……… , ……… "in the same pattern" (3) Simplify: 1)         then find the numerical value if x = -3 2)       ÷  [ 8 ×        ×     ]    3   Second term inal Revision 1 st  Preparatory (4)   1) If x =   , y =   , find the numerical value of x 3 y 2  2) If x =   and y =   , find the numerical value of          (5) Simplify: 1)            2) ()    ()  ()   3) 2 3  + [ 4 + (2 2   ÷  2) ] 4)             5)           (6)   1) If x =   , y =   , then the numerical value of      2) If x =   , y =   , z =   , then find x 2 yz (7) 1) Find the result of the expression (5.4 ×  10 4 ) + (3.7 ×  10 5 ) in the form of a ×  10 n  where n is an integer. 2) If x =    , y =   find the value of y ÷  x 2   (8) Choose the correct answer: a)            = …………..  [ 3ax , 3a 5 x 7  ,   ,   ] b) (  )  (  )    = …………..  [      ,     ,      ,     ] c) Which of the following numbers is the greatest? [ 6.3 ×  10 5  , 9.8 ×  10 4  , 5.2 ×  10 5  ]    4   Second term inal Revision 1 st  Preparatory d)               = …………..  [      ,      ,     ,     ] e)           = …………..  [      , a 2  , 1 ,     ] f) 2.37 ×  10 -4   = …………..  [ 0.00237 , 0.000237 , 23700 , 0.0000237 ] (9) a) Put each of the following in the simplest form: 1)            2)               b) Put the suitable sign ( < or > ): 1) 6.4 ×  10 3  4.6 ×  10 3  2) 6.2 ×  10 4  4.1 ×  10 5  3) 0.0041 3.2 ×  10 -2  4) 4370 3.41 ×  10 4  5) 2.10 ×  10 -5  1.82 ×  10 -5  6) 9.1 ×  10 -4  1.2 ×  10 -5  7) 6.920 ×  10 5  96230 8) 3.69 ×  10 -4  0.0000623    5   Second term inal Revision 1 st  Preparatory (10) Complete: a) The additive inverse of       is …………..  b) The multiplicative inverse of      is …………..  c)          = ………….. in its simplest form.  d)          = …………..  e)      = …………..   (11)  a) If   is a rational number,      = 0.16 evaluate      b) If a =    , b = 2 and c =   , then find the numerical of a 3 b 2  + b 2 c - 8abc
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