Term 1 Model Questions

8th Standard

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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 x 9(_) = ___________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 \(\frac { -5 }{ 12 } +\frac { 7 }{ 15 } \) = ________________

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

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

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

  9. The multiplicative inverse of -1 is ________.

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    -1

  10. The longest chord of a circle is __________.

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    diameter

  11. A cube has _________ faces.

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    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. 7ab÷ 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)

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

  23. Area of the sector of a circle

  24. (3)

    πr2

  25. (4)

    a rational number

  26. (5)

    Triangular Prism

    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 35 cm 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 Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)

  40. Factorise : x+ 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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