Điền dấu: 2dm...30cm

5dm4cm....54cm

72kg....7200g

5500g....5kg

2L× 2...400ml

1200ml....12l

205mm×4....82cm

6000g : 3.....3kg

$\text{lời giải:}$

$\text{+ 2 dm < 30 cm}$

$\text{⇒ 2 dm = 20 cm < 30 cm }$

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$\text{+ 5 dm 4 cm = 54 cm}$

$\text{⇒ 5 dm 4 cm = 54 cm = 54 cm}$

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$\text{+ 72 kg > 7200 g}$

$\text{⇒ 72 kg = 72000 g > 7200 g}$

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$\text{+ 5500 g > 5 kg}$

$\text{⇒ 5500 g = 5 kg 500 g > 5 kg}$

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$\text{+ 2 lít × 2 > 400 ml}$

$\text{⇒ 2 lít × 2 = 4 lít ⇔ 4000 ml > 400 ml}$

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$\text{+ 1200 ml < 12 lít}$

$\text{⇒ 1200 ml = 1 lít 200 ml < 12 lít}$

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$\text{+ 205 mm × 4 = 82 cm}$

$\text{⇒ 205 mm × 4 = 820 mm ⇔ 82 cm = 82 cm}$

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$\text{6000 g ÷ 3 < 3 kg}$

$\text{⇒ 6000 g ÷ 3 = 2000 g ⇔ 2 kg < 3 kg}$