Saturday, March 19, 2011

Worksheet for number system


Write the number names of the following in Indian system
(a) 2005624 (b) 732416 (c) 503302

Answer:
(a) 20,05,624
Twenty lakhs five thousand six hundred twenty four

(b) 7,32,416
Seven lakhs thirty two thousand four hundred sixteen

(c) 5,03,302
Five lakhs three thousand three hundred two

Write in numerals
(a) Sixty three lakhs twenty one thousand nine hundred and forty six.
(b) Two lakh three hundred and four.
(c) Seven hundred and two million nine hundred and thirty four thousands four hundred
and twenty.
(d) Two billion forty one million seventy nine thousand and sixty five.

Answer:
(a) Sixty three lakhs twenty one thousand nine hundred and forty six.
63,21,946

(b) Two lakh three hundred and four.
2,00,304

(c) Seven hundred and two million nine hundred and thirty four thousands four hundred
and twenty.
702,934,420

(d) Two billion forty one million seventy nine thousand and sixty five.
2,041,079,065

Find out:
(a) How many thousands are in a lakh?
(b) How many lakhs are in a million?
(c) How many millions are in a crore?
(d) How many millions are in a billion?

Answer:
(a) How many thousands are in a lakh?
100 Thousands

(b) How many lakhs are in a million?
10 lakhs

(c) How many millions are in a crore?
10 millions

(d) How many millions are in a billion?
1000 millions

How many thousands are in each of the following number?
(a) 3785 (b) 642135 (c) 7000000

Answer:
(a) 3785
Three thousand

(b) 642135
Six hundred forty two thousand

(c) 7000000
Seven thousand thousand

Write the numbers correspond to the following expanded forms :
(a) 3 × 10000 + 5 × 1000 + 2 × 100 + 6 × 10 + 4
(b) 2 × 10000 + 7 × 1000 + 5 × 10 + 3

Answer:
(a) 3 × 10000 + 5 × 1000 + 2 × 100 + 6 × 10 + 4
35,264
(b) 2 × 10000 + 7 × 1000 + 5 × 10 + 3
27,053

Write the following numbers in the expanded form :
(a) 25638 (b) 72804 (c) 600003

Answer:
(a) 25,638
2 x 10000 + 5 x 1000 + 6 x 100 + 3 x 10 + 8

(b) 72,804
7 x 10000 + 2 x 1000 + 8 x 100 + 4

(c) 6,00,003
6 x 100,000 + 3

Find the difference of the place values of two 5’s in 65354.

Answer:
65,354
5 = Thousand
5 = Ten

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