Term 1 Model Questions

8th Standard EM

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Maths

Time : 01:30:00 Hrs
Total Marks : 60
    5 x 1 = 5
  1. Multiplicative inverse of 0 (is)

    (a)

    0

    (b)

    1

    (c)

    -1

    (d)

    does not exist

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

    (a)

    mn2,27

    (b)

    m2n,27

    (c)

    m2n2,-27

    (d)

    mn2,-27

  3. Two similar triangles will always have ________angles

    (a)

    acute

    (b)

    obtuse

    (c)

    right

    (d)

    matching

  4. If ΔABC~ΔPQR in which ∠A = 53o and ∠Q = 77o, then R is

    (a)

    50°

    (b)

    50°

    (c)

    70°

    (d)

    80°

  5. How many outcomes can you get when you toss three coins once?

    (a)

    6

    (b)

    8

    (c)

    3

    (d)

    2

  6. 5 x 1 = 5
  7. The value of \(\frac { -5 }{ 12 } +\frac { 7 }{ 15 } \) = ________________

    ()

    \(\frac { 1 }{ 20 } \)

  8. The multiplicative inverse of \(2\frac { 3 }{ 5 } \) is _____________

    ()

    \(\frac { 5 }{ 13 } \)

  9. The multiplicative inverse of -1 is ________.

    ()

    -1

  10. The longest chord of a circle is __________.

    ()

    diameter

  11. A cube has _________ faces.

    ()

    Six

  12. 5 x 1 = 5
  13. 0 is the smallest rational number

    (a) True
    (b) False
  14. The rational numbers that are equal to their additive inverses are 0 and –1.

    (a) True
    (b) False
  15. Associative property is not true for subtraction of rational numbers.

    (a) True
    (b) False
  16. The multiplicative inverse exists for all rational numbers

    (a) True
    (b) False
  17. 7ab3÷14ab=2b2

    (a) True
    (b) False
  18. 5 x 1 = 5
  19. \(\frac { 22 }{ 7 } \)

  20. (1)

    Cuboid

  21. Area of a circle

  22. (2)

    a rational number

  23. Area of the sector of a circle

  24. (3)

    \(=\frac { { \theta }^{ 0 } }{ { 360 }^{ 0 } } \times { \pi r }^{ 2 }\)

  25. (4)

    Triangular Prism

  26. (5)

    πr2

    5 x 2 = 10
  27. Write four rational numbers equivalent to
    \(\frac { -3 }{ 5 } \)

  28. A piece of wire is \(\frac { 4 }{ 5 } \) m long.  If it is cut into 8 pieces of equal length, how long will each piece be?

  29. Find the area of a sector whose length of the arc is 50 mm and radius is 14 mm.

  30. Find the perimeter and area of the combined figures given below. \(\left( \pi =\frac { 22 }{ 7 } \right) \)

  31. Which 3-D shapes do the following nets represent? Draw them.

  32. 5 x 3 = 15
  33. Write the following decimal numbers as rationals.
    3.0

  34. Reduce to the standard form
     \(\frac { 48 }{ -84 } \)

  35. Find \(\frac { -6 }{ -11 } \times \left( -4 \right) \)

  36. A circular shaped gymnasium ring of radius 35cm is divided into 5 equal arcs shaded with different colours. Find the length of each of the arcs.

  37. Multiply (2x+5y) and (3x−4y)

  38. 3 x 5 = 15
  39. Find the perimeter and area of the given Fig.2.27. \(\left( \pi =\frac { 22 }{ 7 } \right) \)

  40. Factorise : x2+8x+16

  41. Construct a quadrilateral MATH with MA=4 cm, AT= 3.6 cm, TH = 4.5 cm, MH = 5 cm and ∠A = 85°. Also find its area.

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