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Note On Number

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Published in: Mathematics
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Chapter- 1 "Numbers" Mathematics always begins with numbers. We see numbers all around us.

Dimpi S / Ghaziabad

5 years of teaching experience

Qualification: M.Com (Master of Commerce), B.Com (Hons.), CBSE Qualified Teacher, 5+ years teaching experience. B.ed

Teaches: Basic Computer, MS Office, School Level Computer, Computer, EVS, Mathematics, Science, Economics

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  1. Introductory notes for Mathematics Class-V Chapter -1 (Numbers) Numbers are symbols or figures that we use for counting, measuring, and comparing things. Without numbers, life would be very difficult — we cannot buy things, tell time, play games, or even know our age. Few examples from Daily Life :- . We use numbers to tell our age (e.g., I am 10 years old). . Numbers are used in money (e.g., a pencil costs . Time is shown with numbers (e.g., the school starts at 8:00 a.m.). . We use numbers to know the marks we get in exams. . Distances are shown in numbers (e.g., Delhi to Agra is 230 km). . Sports scores are written with numbers (e.g., India scored 250 runs in cricket). So, numbers help us in counting, measuring, and recording information in daily life.
  2. Numericals (for practice) 1. Write the number name for: (a) 54,382 2. Write in figures: (a) Fifty-seven thousand three hundred nine (b) Eight lakh six thousand four hundred (c) Nine crore two lakh five 3. Place Value: Find the place value of the underlined digit: (a) 45,276 4. Write the following numbers in expanded form: (a) 25,607 = 5. Compare using >, < or = 70,050 6. Round off to the nearest 100: (a) 7,348 = (b) 9,672 =
  3. 7. Word Problem: The population of a town is 4,82,356. Out of these, 2,45,180 are males. (i) How many females are there in the town? "Keep practicing, numbers will soon become your best friends!
  4. Answers 1. (a) Fifty-four thousand three hundred eighty- two (b) Seven lakh twenty-five thousand six hundred forty (c) Four lakh eight thousand fifty-one 2. (a) 57,309 3. (a) 50,000 (b) 2,000 (c) O (Zero has no value) 4. (a) 25,607 = 20,000 + 5,000 + 600+7 (b) = + 40,000 + 8,000 + 900 + 20+1 (b) > 70,050 6. (a) 7,348 7,300 (b) 9,672 9,700 7. Females = =

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