Algebra - One Mark Questions

8th Standard EM

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Maths

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 1 = 5
  1. The product of 7p3 and (2p2)2 is

    (a)

    14p12

    (b)

    28B7

    (c)

    9p7

    (d)

    11p12

  2. The missing terms in the product -3m3n X9(_)m4n3 are

    (a)

    mn2,27

    (b)

    m2n,27

    (c)

    m2n2,-27

    (d)

    mn2,-27

  3. If the area of a square is 36x4y2then, its side is______

    (a)

    6x4y2

    (b)

    8x2y2

    (c)

    6x2y2

    (d)

    -6x2y

  4. If the area of a rectangle is 48m2n3 and whose length is 82mn then, its breadth is______

    (a)

    6mm

    (b)

    8m2n

    (c)

    7m2n2

    (d)

    6m2n2

  5. If the area of a rectangular land is(a2-b2)− sq.units whose breadth is()ab− then, its length is__________

    (a)

    a-b

    (b)

    a+b

    (c)

    a2-b

    (d)

    (a+b)2

  6. 5 x 1 = 5
  7. \(\cfrac { { 18m }^{ 4 } }{ { 2m }^{ 3 }{ n }^{ 5 } } =\_ \_ \_ { mn }^{ 5 }\)

    ()

    \(\cfrac { 18{ m }^{ 4 }(n^{ 98 }) }{ 2m^{ (3) }{ n }^{ 3 } } =9mn^{ 5 }\)

  8. \(\cfrac { { 42a }^{ 4 }{ b }^{ 5 }\left( \_ \right) }{ { 6a }^{ 4 }{ b }^{ 2 } } =\left( \_ \right) { b }^{ 3 }{ c }^{ 2 }\)

    ()

     \(\cfrac { { 42a }^{ 4 }{ b }^{ 5 }\left( c^2 \right) }{ { 6a }^{ 4 }{ b }^{ 2 } } =\left( 7 \right) { b }^{ 3 }{ c }^{ 2 }\)

  9. Expand the following
    (p + 2)2=_________

    ()

    (p + 2)2 = p2 + 2(P) (2) + 22 =p2 + 4p + 4

  10. Expand the following
    (3 - a)2=________

    ()

    (3 - a)2 =32-2(3) (a) +a2= 9 - 6a + a2

  11. Expand the following
    (62-x2)=_______

    ()

    (62-x2) = (6+x)(6-x)

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