Page 15 - ICSE Math 4

Exercise 1.1

1. Write the numbers represented on the abacus in the given boxes.

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

2. Put commas to break the following numbers into periods using Indian and
Interna onal number systems.
(a) 2694 (b) 53470 (c) 699099 (d) 9876543 (e) 7698542

3. Write the given numbers in words using both the Indian and Interna onal number
systems.

(a) 20783 (b) 91072 (c) 756392 (d) 989597

4. Write the given number names in fi gures. Also, put the commas as per the Indian
or Interna onal number system.

(a) Twenty-eight thousand three hundred thirty-three

(b) Nine lakh seventy-four thousand six hundred sixty-fi ve
(c) Nine hundred thirty-two thousand four hundred seventy

(d) Five hundred ninety-nine thousand nine hundred ninety-nine

5. Write the face value and the place value of the underlined digits in the following
numbers.
(a) 41,685 (b) 21,468 (c) 62,109 (d) 4,36,127 (e) 83,486

6. Write the place value of digit 8 in the following numbers.
(a) 48,240 (b) 86,400 (c) 30,802 (d) 9,63,048

7. Write the following numbers in expanded form.

(a) 21,985 (b) 92,194 (c) 7,54,270 (d) 8,88,888

8. Write the following expanded forms in standard form.
(a) 90,000 + 6,000 + 200 + 50 + 8 (b) 7 L + 9 TTh + 5 Th + 4 H + 0 T + 5 O

(c) 70,000 + 2,000 + 200 + 80 + 5 (d) 4 L + 3 TTh + 1 Th + 4 H + 6 T + 7 O

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