1. What must be added to -2 to get 8?

2. What must be subtracted from -3 to get 2?

3. Write two rational numbers between

and

.

4. Compare the following pairs of rational numbers and identify which of them is greater:
(i)

,

(ii)

,

(iii)

,

5. Express each of the following in the lowest terms:

(i)

(ii)

(iii)

6. Without actual division, determine which of the following numbers have a terminating decimal representation:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

7. Express each of the following in decimal form:

(i)

(ii)

(iii)

(iv)

8. Write each of the following numbers as a mixed fraction:-

(i)

(ii)

(iii)

(iv)

(v)

9. Which of the following numbers are equal to

?

(i)

(ii)

(iii)

(iv)

10. Evaluate:

(i)

(ii)

(iii)

(iv)