a) \(4 \, \text{m} \, 9 \, \text{cm} = 4,09 \, \text{m}\)  
b) \(3 \, \text{km} \, 564 \, \text{m} = 3,564 \, \text{km}\)  
c) \(1 \, \text{kg} \, 297 \, \text{g} = 1,297 \, \text{kg}\)  
d) \(2 \, \text{tấn} \, 416 \, \text{kg} = 2,416 \, \text{tấn}\)  
e) \(5 \, \text{l} \, 102 \, \text{ml} = 5,102 \, \text{l}\)  
f) \(510 \, \text{g} = 0,510 \, \text{kg}\)  
g) \(164 \, \text{kg} = 0,164 \, \text{tấn}\)  
h) \(4 \, \text{km} \, 32 \, \text{m} = 4,032 \, \text{km}\)  
i) \(450 \, \text{ml} = 0,450 \, \text{l}\)  
j) \(310 \, \text{mm} = 0,310 \, \text{m}\)  

a,4 m 9 cm=...4,09...m
b,3 km 564 m =.3,564..km
c,1 kg 297 g=.....1,297..kg
d,2 tấn 416 kg=......2,416 .tấn
e,5 l 102 ml=.....5,102......l
f, 510 g =........0,51....kg
g,164 kg =........0,164.....tấn
h,4 km 32 m=...4,032..km
i,450 ml=.....0,45....l
j, 310 mm=......0,...m