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. Expand the following
    (m + n) (____) = m2-n2

    ()

    (m + n) (m - n) = m2-n2

  8. Expand the following
    (m + -)2= m2+ 14m + 49

    ()

    (m + 7)2 = m2+14m+49

  9. Expand the following
    (k2-36)=(k+_)(k-__)

    ()

    k2-36=k2-62142=(k+6)(k-6)

  10. Expand the following
    m2 - 6m + 9=_______

    ()

    m2 - 6m + 9 = (m-3)2

  11. Expand the following
    (m -10)(m + 5)=______

    ()

    (m - 10)(m + 5) =  m2+ (-10+ 5)m + (-10)(5) = m2 - 5m -50

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