Round off 75 to the nearest 10, 80, 70, 50, Round off 487 to the nearest 10, 480, 470, 490, which are the even numbers, 1,3,5,7,9, 2,4,6,8,0, 1,2,3,4,5, Which is greater 1236 or 1248, 1236, 1248, smallest 4-digit number that can be formed using 1,7,5,0, 1570, 1507, 1057, Round off 31 to the nearest 10, 40, 30, Round off 654 to the nearest 100, 700, 704, 600

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