Practice Test | Kullabs.com
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  • Find the value of a and b for:

    ab=18, a + b =11

    3 and 5
    9 and 2
    1 and 1
    3 and 1
  • Find the value of a and b for:

     ab=21, a + b=22

    21 and 1
    7 and 3
    20 and 4
    9 and 5
  • What should be filled in the given blank in order to make the expression a perfect square?

    x2+______+25

    10x
    5x
    9x
    11y
  • What should be filled in the given blank in order to make the expression a perfect square?

     y2- ______+81

    18 y
    10 y
    2 y
    10 y
  • What should be filled in the gap below in order to make the expression a perfect square?

     4x2 +______+ 9y2

    12 xy
    2 xy
    5 xy
    10 xy
  • What should be filled in the gap below in order to make the expression a perfect square?

     9x2 + ______ + 16

    2 x
    25 x 
    24 x
    20 x
  • What should be filled in the given blank in order to make the expression a perfect square?

     25x2- ______ + 64

    50 x
    30 x
    80 x
    20 x
  • What should be filled in the given blank in order to make the expression a perfect square?

     36 - ______ + 25y2

    60 y
    35 y
    50 y 
    25 y
  • What is the correct value of (64)2 – (36)2?

    2800
    2100
    2600
    2550
  • Which one of the following is the correct value of (42)2 – (28)2?

    980
    250
    900
    820
  • Find the value of:

    (10003)2 – (9997)2

    120000
    110000
    150000
    100000
  • Which one of them is the correct value of (9.2)2 – (0.8)2?

    84
    63
    22
    56
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