10填空
$430 cm = ($$)dm = ($$)m$ $4.3 m² = ($$)dm²$
$820000 cm³ = ($$)dm³ = ($$)m³$ $540 dm² = ($$)cm²$
$3 m² = ($$)dm² = ($$)cm²$ $23.4 m³ = ($$)dm³$
$6200 cm² = ($$)dm² = ($$)m²$ $710 m³ = ($$)dm³$
$0.08 m³ = ($$)dm³ = ($$)cm³$ $3000 cm² = ($$)dm²$
$5.04 m³ = ($$)dm³ = ($$)cm³$ $8.04 m³ = ($$)dm³$
$90000 cm³ = ($$)dm³ = ($$)m³$ $2.8 m = ($$)dm$
$6.5 m³ = ($$)dm³ = ($$)cm³$ $609 m² = ($$)dm²$
$50.2 cm = ($$)dm = ($$)m$ $75 dm³ = ($$)cm³$

43；4.3；430；820；0.82；54000；300；30000；23400；62；0.62；710000；80；80000；30；5040；5040000；8040；90；0.09；28；6500；6500000；60900；5.02；0.502；75000

1. $430cm = 430÷10 = 43dm$，$430cm = 430÷100 = 4.3m$
2. $4.3m² = 4.3×100 = 430dm²$
3. $820000cm³ = 820000÷1000 = 820dm³$，$820000cm³ = 820000÷1000000 = 0.82m³$
4. $540dm² = 540×100 = 54000cm²$
5. $3m² = 3×100 = 300dm²$，$3m² = 3×10000 = 30000cm²$
6. $23.4m³ = 23.4×1000 = 23400dm³$
7. $6200cm² = 6200÷100 = 62dm²$，$6200cm² = 6200÷10000 = 0.62m²$
8. $710m³ = 710×1000 = 710000dm³$
9. $0.08m³ = 0.08×1000 = 80dm³$，$0.08m³ = 0.08×1000000 = 80000cm³$
10. $3000cm² = 3000÷100 = 30dm²$
11. $5.04m³ = 5.04×1000 = 5040dm³$，$5.04m³ = 5.04×1000000 = 5040000cm³$
12. $8.04m³ = 8.04×1000 = 8040dm³$
13. $90000cm³ = 90000÷1000 = 90dm³$，$90000cm³ = 90000÷1000000 = 0.09m³$
14. $2.8m = 2.8×10 = 28dm$
15. $6.5m³ = 6.5×1000 = 6500dm³$，$6.5m³ = 6.5×1000000 = 6500000cm³$
16. $609m² = 609×100 = 60900dm²$
17. $50.2cm = 50.2÷10 = 5.02dm$，$50.2cm = 50.2÷100 = 0.502m$
18. $75dm³ = 75×1000 = 75000cm³$

下面的 12 根小棒能搭成怎样的一个长方体？请你在下方右图中标注出相应的数据，并计算它的体积

在右图中标注：长=6cm，宽=4cm，高=2cm，体积为48立方厘米。

题目给出的12根小棒可以组成一个长方体，需满足长方体的条件：选取三组长度相等的边，每组4根。
假设题目给出的12根小棒长度分别为：6cm, 6cm, 6cm, 6cm（长边）；4cm, 4cm, 4cm, 4cm（中边）；2cm, 2cm, 2cm, 2cm（短边）。
可以选取：长=6cm，宽=4cm，高=2cm。
体积计算公式：体积 = 长 × 宽 × 高。
体积 = 6 × 4 × 2 = 48（立方厘米）。