8th Standard New Syllabus Chapter One Important Question

8th Standard EM

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Maths

Use Blue Ink Pen Only

Time : 02:00:00 Hrs
Total Marks : 50

    Part-B

    Multiple Choice Question

    6 x 1 = 6
  1. The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \)

    (a)

    \(\frac { 34 }{ 99 } \)

    (b)

    \(\frac { -142 }{ 99 } \)

    (c)

    \(\frac { 142 }{ 99 } \)

    (d)

    \(\frac { -34 }{ 99 } \)

  2. Which of the following rational numbers is the greatest?

    (a)

    \(\frac { -17 }{ 24 } \)

    (b)

    \(\frac { -13 }{ 16 } \)

    (c)

    \(\frac { 7 }{ -8 } \)

    (d)

    \(\frac { -31 }{ 32 } \)

  3. \(\frac { -5 }{ 4 } \) is a rational number which lies between

    (a)

    0 and \(\frac { -5 }{ 4 } \)

    (b)

    -1 and 0

    (c)

    –1 and –2

    (d)

    –4 and –5

  4. Which of the following illustrates the inverse property for addition?

    (a)

    \(\frac { 1 }{ 8 } -\frac { 1 }{ 8 } =0\)

    (b)

    \(\frac { 1 }{ 8 } +\frac { 1 }{ 8 } =\frac { 1 }{ 4 } \)

    (c)

    \(\frac { 1 }{ 8 } +0=\frac { 1 }{ 8 } \)

    (d)

    \(\frac { 1 }{ 8 } -0=\frac { 1 }{ 8 } \)

  5. Closure property is not true for division of rational numbers because of the number

    (a)

    0

    (b)

    -1

    (c)

    0

    (d)

    \(\frac { 1 }{ 2 } \)

  6. \(\left( 1-\frac { 1 }{ 2 } \right) \times \left( \frac { 1 }{ 2 } -\frac { 1 }{ 4 } \right) \div \left( \frac { 3 }{ 4 } -\frac { 1 }{ 2 } \right) \)=

    (a)

    \(\frac { 1 }{ 2 } \)

    (b)

    \(\frac { 3 }{ 4 } \)

    (c)

    \(\frac { 1 }{ 4 } \)

    (d)

    \(\frac { -1 }{ 2 } \)

  7. Part-C

    Answer The Following Question
    10 x 2 = 20
  8. List five rational numbers between
    0.25 and 0.35

  9. List five rational numbers between
    –1.2 and -2.3

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

  11. Write four rational numbers equivalent to
    \(\frac { -7 }{ 6 } \)

  12. Find the rational numbers for the points marked on the number line.

  13. Find the rational numbers for the points marked on the number line.

  14. Using average, write 3 rational numbers between \(\frac { 14 }{ 5 } \) and \(\frac { 16 }{ 3 } \)

  15. Verify that -(- x) is the same x for:
    \(x=\frac { -31 }{ 45 } \)

  16. If \(\frac { 3 }{ 4 } \) of a box of apples weighs 3 kg and 225 gm, how much does a full box of apples weigh?

  17. Mangalam buys a water jug of capacity \(3\frac { 4 }{ 5 } \) litres. If she buys another jug which is \(2\frac { 2 }{ 3 } \) times as large as the smaller jug, how many liters can the larger one hold?

  18. Part-D

    Answer The Following Question

    7 x 3 = 21
  19. Reduce to the standard form
     \(\frac { 48 }{ -84 } \)

  20. Reduce to the standard form
    \(\frac { -18 }{ -42 } \)

  21. Find which rational number is greater?
    \(\frac { 5 }{ -4 } ,\frac { -11 }{ -7 } \)

  22. Find which rational number is greater?
    \(\frac { -10 }{ 3 } ,\frac { 14 }{ -5 } \)

  23. A student instead of multiplying a number by \(\frac { 8 }{ 9 } ,\) divided it by \(\frac { 8 }{ 9 } \) by mistake. If the difference between the answers got by him is 34, find the number.

  24. Evaluate: \(\left( \frac { 4 }{ 3 } -\left( \frac { -3 }{ 2 } \right) \right) +\left( \frac { -5 }{ 3 } \div \frac { 30 }{ 12 } \right) +\left( \frac { -12 }{ 9 } \times \frac { -27 }{ 16 } \right) \)

  25. In the NEET exam, out of a total of 180 questions, a Jeyanth answered \(\frac { 19 }{ 30 } \) of the questions correctly and \(\frac { 5 }{ 18 } \) of the questions incorrectly. How many questions did Jeyanth not attend at all?

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