Page 22 - Start Up Mathematics_4

LET’S EVALUATE

1. Represent the following numbers on the abacus.

(a) TTh Th H T O (b) L TTh Th H T O

54,208 8,42,739

2. Write the number names in the Indian and International Number System.

(a) 6475 (b) 92087 (c) 549306 (d) 1274583

3. Write in the expanded form.
(a) 8,347 (b) 15,209 (c) 7,53,621 (d) 37,35,438

4. Write the smallest and the greatest 6-digit numbers that can be formed using the
digits 8, 4, 0, 7, 5, 2. Use each digit only once.
5. Arrange in ascending order.

(a) 32,491; 31,491; 38,149; 32,149; 31,941

(b) 9,82,467; 9,82,476; 8,93,756; 8,99,324; 9,92,946
6. Arrange in descending order.

(a) 66,075; 69,328; 69,915; 66,208; 67,143
(b) 10,081; 10,180; 10,089; 10,918; 10,810

7. Arjun wants to treat his friends on his birthday. Using the given information, estimate
the total amount he needs for the treat.

• 4 packets of chips costing ` 78 (rounded off to the nearest 10)
• 6 samosas costing ` 62 (rounded off to the nearest 10)

• 4 pizzas costing ` 1,549 (rounded off to the nearest 1,000)

• 5 plates of momos costing ` 135 (rounded off to the nearest 100)
• 3 cartons of juice costing ` 178 (rounded off to the nearest 100)

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