Tính √20 . √72 . √(4,9)
√20.√72 .√4,9 = √(20.72.4,9) = √(2.72.10.4,9)
= √(144.49) = √((12.7)2 ) = 84
Choose the best answer.
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.
We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.