1. (i) links to (f)
(ii) links to (a) 
(iii) links to (b) 
(iv) links to (d)
(v) links to (e)
(vi) links to (c)

2. a. 156.687 kg
b. 156 687 g
c. 0.156687 t

3. a. Tonnes
b. grams
c. kilograms
d. milligrams

4. a. 8 kg = 8000 g
b. 150 mg = 0.15 g
c. 12 t = 12 000 kg
d. 230 kg = 0.23 t
e. 56 g = 56 000 mg
f. 4500 g = 4.5 kg
g. 0.5 t = 500 kg
h. 1203 mg = 1.203 g
i. 324.5 mg = 0.0003245 kg
j. 39 kg = 39 000g

5. a. 8480 mg
b. 4850 g
c. 7620 kg
d. 5.7 t
e. 4435.32 g