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8 \text{dl} = 8 \times 100 \text{ ml} = 800 \text{ ml}
3 \text{cl} = 3 \times 10 \text{ ml} = 30 \text{ ml}
8 \text{dl} 3 \text{cl} = 800 \text{ ml} + 30 \text{ ml} = 830 \text{ ml}
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