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(i) 250 \(\text{மி.லி}\) \(+\) \(\text{லி}\) \(=\) \(\text{லி}\)
(ii) 150 \(\text{கி.கி}\) 200 \(\text{கி}\) \(+\) 55 \(\text{கி.கி}\) 750 \(\text{கி}\) \(=\) \(\text{கி.கி}\) \(\text{கி}\)
(iii) 20 \(\text{லி}\) \(−\) 1 \(\text{லி}\) 500 \(\text{மி.லி}\) \( =\) \(\text{லி}\) \(\text{மி.லி}\)