Convert the ff: 15 km to cm 27.8 mg to Mg. 10 dm2 to mm2 350 ml to cm3?

1 km = 1,000 m = 1,000 × 100 cm = 100,000 cm
Hence, 15 km = 15 × 100,000 cm = 1,500,000 cm
(or 1.5 × 10⁶ cm)

1 Mg = 1,000,000 g = 1,000,000 × 1,000 mg = 1,000,000,000 mg
Hence, 27.8 mg = 27.8/1,000,000,000 Mg = 0.0000000278 Mg
(or 2.78 × 10⁻⁸ Mg)

1 dm² = 1 × (100)² mm² = 10,000 mm²
Hence, 10 dm² = 10 × 10,000 mm² = 100,000 mm²
(or 1 × 10⁵ mm²)

1 ml = 1 cm³
Hence, 350 ml = 350 cm³

15km=1,5e+6cm
27.8mg=2,78e-8
10dm2=100000mm2
350ml=350cm3