Câu `5`:

`5 \text{ tạ } 32 \text{ yến } = 500 \text{ kg } + 320 \text{ kg } = 820 \text{ kg}`

`8 \text{ tấn } 10 \text{ yến } = 80 \text{ tạ } + 1 \text{ tạ } = 81 \text{ tạ}`

`8 \text{ m}^2 200 \text{ cm}^2 = 800 \text{ dm}^2 + 2 \text{ dm}^2 = 802 \text{ dm}^2`

`7 \text{ km}^2 206 \text{ m}^2 = 7000206 \text{ m}^2` 

`5070 \text{ dm}^2 = 50 \text{ m}^2 70 \text{ dm}^2` 

`20048 \text{ cm}^2 = 0 \text{ m}^2 20048 \text{ cm}^2`

Câu `6`:

`8 \text{ tấn } 45 \text{ kg } < 8045 \text{ kg}`

`4 \text{ tấn } > 45 \text{ tạ}`

`30 \text{ m}^2 20 \text{ dm}^2 < 30020 \text{ dm}^2`

`6 \text{ km}^2 62 \text{ m}^2 > 6 000 620 \text{ cm}^2`

`\frac{2}{5} \text{ phút } = 24 \text{ giây}`

`2 \text{ m}^2 3 \text{ dm}^2 = 20003 \text{ cm}^2`