QUESTION IMAGE
Question
q3 : convertir les unités. ( / 4p)
5 dal = __________ cm³\t5 dm³ = __________ cm³
1 hl = __________ l\t500 dm³ = __________ l
1. Conversion de \( 5 \, \text{daL} \) en \( \text{cm}^3 \)
Step 1: Rappeler les relations de conversion
On sait que \( 1 \, \text{daL} = 10 \, \text{L} \) et \( 1 \, \text{L} = 1000 \, \text{cm}^3 \). Donc, \( 1 \, \text{daL} = 10 \times 1000 = 10000 \, \text{cm}^3 \).
Step 2: Calculer pour \( 5 \, \text{daL} \)
Pour convertir \( 5 \, \text{daL} \) en \( \text{cm}^3 \), on multiplie par le facteur de conversion : \( 5 \times 10000 = 50000 \). Ainsi, \( 5 \, \text{daL} = 50000 \, \text{cm}^3 \).
2. Conversion de \( 5 \, \text{dm}^3 \) en \( \text{cm}^3 \)
Step 1: Rappeler la relation de conversion
On sait que \( 1 \, \text{dm}^3 = 1000 \, \text{cm}^3 \).
Step 2: Calculer pour \( 5 \, \text{dm}^3 \)
Pour convertir \( 5 \, \text{dm}^3 \) en \( \text{cm}^3 \), on multiplie par le facteur de conversion : \( 5 \times 1000 = 5000 \). Ainsi, \( 5 \, \text{dm}^3 = 5000 \, \text{cm}^3 \).
3. Conversion de \( 1 \, \text{hL} \) en \( \text{L} \)
Step 1: Rappeler la relation de conversion
On sait que \( 1 \, \text{hL} = 100 \, \text{L} \) (car \( \text{h} \) pour hecto signifie \( 10^2 = 100 \)).
4. Conversion de \( 500 \, \text{dm}^3 \) en \( \text{L} \)
Step 1: Rappeler la relation de conversion
On sait que \( 1 \, \text{dm}^3 = 1 \, \text{L} \).
Step 2: Calculer pour \( 500 \, \text{dm}^3 \)
Donc, \( 500 \, \text{dm}^3 = 500 \, \text{L} \).
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s:
- \( 5 \, \text{daL} = \boldsymbol{50000} \, \text{cm}^3 \)
- \( 5 \, \text{dm}^3 = \boldsymbol{5000} \, \text{cm}^3 \)
- \( 1 \, \text{hL} = \boldsymbol{100} \, \text{L} \)
- \( 500 \, \text{dm}^3 = \boldsymbol{500} \, \text{L} \)