Page 22 - Start Up Mathematics_5

LET’S EVALUATE

1. Write a number for each of the following.

(a) Three crore fifty-three thousand six hundred seven _______________

(b) Fifteen crore nine thousand two hundred forty-two _______________
(c) Eighty-nine lakh forty-five thousand two hundred seventy-five _______________

(d) Nine crore nine thousand nine hundred nine _______________

(e) Sixty-seven crore _______________
2. Complete the series.

23,45,479; ___________; 23,45,481; ___________; ___________; 23,45,484

3. Write the largest and the smallest number of 6 digits.
4. Write the smallest number of 7 digits having 3 different digits.

5. Write the largest number of 6 digits ending with the digit 5.

6. Write the number name for 22,02,22,222 using the Indian system of numeration.
7. Round off 4,531 to the nearest 10, 100 and 1,000.

8. Which is greater—3,45,673 or 3,47,549?

9. What are the place values of 4 and 6 in 3456779 in the Indian as well as the International
system of numeration? Find their sum and difference.
10. 50 million = ___________ lakh

SCRATCH YOUR BRAIN

1. A certain number has 4 digits. Each digit is an odd number. None of the digits is 9.
Every digit in the number is different. The smallest digit is in the thousands place. The
greatest digit is in the ones place. The hints above describe two possible numbers.
One number is greater of the two numbers. What is it?

2. A million (1,000,000) is a thousand thousands. How many watches worth ` 100,000
can you buy for a million rupees?

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