Page 130 - New Medley 4 Semester 2 PDF (Merged)

Example 3: Convert into grams.

(a) 5 kg (b) 8 kg 20 g

Solution: (a) 5 kg = 5 × 1000 g = 5000 g ( 1 kg = 1000 g)

(b) 8 kg 20 g = 8 × 1000 g + 20 g = 8000 g + 20 g = 8020 g

Example 4: Convert into kg and g.

(a) 13000 g (b) 86527 g
1
Solution: (a) 13000 g = (13000 ÷ 1000)kg = 13kg ( 1g = kg)
1000

(b) 86527 g = 86000 g + 527 g

= (86000 ÷ 1000) kg + 527 g = 86 kg 527 g
86527
or 86527 g = kg = 86.527 kg
1000

Capacity

The commonly used units are millilitre and litre. We convert
÷ 1000
mL into L and vice versa as we convert g and kg.

Z Z To convert L into mL, multiply it by 1000.
mL L
Z Z To convert mL into L, divide it by 1000.

Example 5: Convert into millilitres.
× 1000
(a) 13 L (b) 5 L 910 mL

Solution: (a) 13 L = 13 × 1000 mL = 13000 mL ( 1L = 1000 mL)

(b) 5 L 910 mL = 5 × 1000 mL + 910 mL

= 5000 mL + 910 mL = 5910 mL

Example 6: Convert into L and mL.

(a) 6000 mL (b) 75428 mL

1
Solution: (a) 6000 mL = (6000 ÷ 1000) L = 6 L ( 1 mL = L)
1000

(b) 75428 mL = 75000 mL + 428 mL

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