8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 2 Mark Questions with Solution Part - I

8th Standard

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 10

    2 Marks

    10 x 2 = 20
  1. List five rational numbers between
    –2 and 0

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

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

  4. Divide: \(\frac { -21 }{ 5 } \) by \(\frac { -7 }{ -10 } \)

  5. Compare the following pairs of rational numbers.
    \(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

  6. Verify the associative property for addition and multiplication of the rational numbers \(\frac { -7 }{ 9 } ,\frac { 5 }{ 6 } ,\frac { -4 }{ 3 } \)

  7. Verify the commutative property for addition and multiplication of the rational numbers \(\frac { -10 }{ 11 } \) and \(\frac { -8 }{ 33 } \)

  8. Verify the distributive property a x (b + c) = (a x b ) + ( a + c) for the rational numbers \(a=\frac { -1 }{ 2 } ,b=\frac { 2 }{ 3 } ,c=\frac { -5 }{ 6 } \)

  9. Evaluate using appropriate properties
    \(\left\{ \frac { 1 }{ 2 } \times \frac { -3 }{ 4 } \right\} -\left\{ \frac { 3 }{ 8 } \times \frac { -1 }{ 4 } \right\} +\left\{ \frac { -3 }{ 5 } \times \frac { -1 }{ 4 } \right\} \)

  10. Use commutative and distributive properties to simplify \(\frac { 4 }{ 5 } \times \frac { -3 }{ 8 } -\frac { 3 }{ 8 } \times \frac { 1 }{ 4 } +\frac { 19 }{ 20 } \)

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