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#### Term 1 Rational Numbers 3 Marks and 5 Marks Questions

8th Standard EM

Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 40
5 x 3 = 15
1. Write the following decimal numbers as rationals.
0.25

2. Write the following decimal numbers as rationals.
0.666…

3. Find which rational number is greater?
$\frac { 5 }{ -4 } ,\frac { -11 }{ -7 }$

4. Find which rational number is greater?
$\frac { -10 }{ 3 } ,\frac { 14 }{ -5 }$

5. Simplify $\left( \frac { -16 }{ 5 } \times \frac { 20 }{ 8 } \right) -\left( \frac { 15 }{ 5 } \times \frac { -35 }{ 3 } \right)$

6. 5 x 5 = 25
7. Simplify $\left( \frac { -16 }{ 5 } \times \frac { 20 }{ 8 } \right) -\left( \frac { 15 }{ 5 } \times \frac { -35 }{ 3 } \right) \div \left( \frac { 11 }{ 16 } +\frac { 4 }{ 8 } \right)$

8. Simplify $=\frac { -12 }{ 10 } +\left( \frac { -90 }{ 15 } \right) -\left( \frac { 3 }{ 8 } \right)$

9. Simplify $\left( \frac { -7 }{ 18 } \times \frac { 15 }{ -7 } \right) -\left( 1\times \frac { 1 }{ 4 } \right) +\left( \frac { 1 }{ 2 } \times \frac { 1 }{ 4 } \right)$

10. Evaluate $\frac { 6 }{ 7 } -2+\frac { -7 }{ 9 } +\frac { 19 }{ 21 }$

11. Verify associative property for addition of rational numbers for $a=\frac{5}{6}, b=\frac{-3}{4},c=\frac{4}{7}$