Bài 1: Tính - Rút gọn : a) 2$\sqrt{8\sqrt{3}}$ + 2$\sqrt{5\sqrt{3}}$ - 3$\sqrt{20\sqrt{3}}$ b) 2$\sqrt{40\sqrt{12}}$ - 2$\sqrt{\sqrt{75}}$ - 3$\sqrt{5\sqrt{48}}$ c) $\sqrt{8\sqrt{3}}$ - 2$\sqrt{25\sqrt{12}}$ + 4$\sqrt{\sqrt{192}}$

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I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

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We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

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I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.