Page 132 - New Medley 5 Semester 2

Similarly, hm is 10 × 10 × 10 × 10 × 10 times bigger than mm.

\ 4 hm = 4 × 100000 mm = 400000 mm

Example 2: Convert 15 cg into g and kg.

Solution: Since cg is 10 × 10, i.e., 100 times smaller than g,

So 15 cg = 15 ÷ 100 g = 0.15 g

Similarly, cg is 10 × 10 × 10 × 10 × 10, i.e., 100000 times smaller
than kg.

\ 15 cg = 15 ÷ 100000 kg = 0.00015 kg

Example 3 : Express the following into litres.

(a) 4 kL 4 hL 2 daL 8 L (b) 8 dL 6 cL 3 mL

Solution: (a) 4 kL 4 hL 2 daL 8 L

= 4 × 1000 L + 4 × 100 L + 2 × 10 L + 8 L

= (4000 + 400 + 20 + 8) L = 4428 L

(b) 8 dL 6 cL 3 mL = 8 ÷ 10 L + 6 ÷ 100 L + 3 ÷ 1000 L

= (0.8 + 0.06 + 0.003) L = 0.863 L

EXERCISE 5.1

A. Fill in the blanks by converting the given measures into the corresponding
units.

1. 5 kg = hg = dag = g = dg = cg = mg

2. 4 km = hm = dam = m = dm = cm = mm

3. 3 kL = hL = daL = L = dL = cL = mL

B. Express the following into the unit indicated against each.
1. 7 kg 5 hg 9 dag 7 g (in g) 2. 4 g 7 dg 8 cg 2 mg (in mg)

3. 17 km 8 hm 2 dam 5 m (in km) 4. 95 dm 1 cm 7 mm (in m)
5. 2 kL 8 daL 4 L 5 dL (in dL) 6. 4 hL 9 daL 1 L 5 cL (in kL)

7. 4 hm 7 m 8 cm (in km) 8. 7 dag 5 dg 3 cg 9 mg (in g)

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