Approved by Carricalum Deciopment Cenre, Snoth a 16. Let's search the current population of your district and write it in numeral 9. From these expanded form, write the numerals. Eg 6x 10' + 5 x 10' = 6050 4x 10 + 3 x 10 + 8 x 10 403800 2.8 Operations on whole mumbers a) 3 x 10 + 2 × 10' + 5 x 10° b) 7 x 10 + 4 x 10 + 6 x 10° c) 2 x 10' + 5 x 10' + 1 x 10 + 9 x 10' 10. a) Find the sum of the greatest and the least numbers of 6 digits. b) Find the difference between the greatest and the least numbers of 7-digits formed by 3, 0, 1, 8, 5, 9, 4. d) 8 x 10° + 9 x 10 + 3 x 10 + 7 x 10' 11. a) If x is at tens place and y is at ones place, write the number formed h these digits. b) If a is at hundreds place, b is at tens place and c is at ones place, write the number formed by these digits. Creative section -B 12. a) Find the sum and difference between the place value and face value of 5 in the number 35086941. b) Find the sum and difference between the place values of two sevens in the number 6784037525. c) Find the sum and difference between the place values of nine in the numbers 49560327 and 1024968. 13. a) Find the sum and difference between the number 98 and the number obtained by reversing its digits. b) What are the sum and difference between the numbers 473 and the number obtained by reversing the digits at ones and hundreds places! 14. a) By how much is 6345987 smaller than 1 crore? b) By how much is 9966004321 larger than 1 billion? It's your time - Project work! 15. Let's visit to the available website and search the current population O Nepal, India and China. a) Write the population in numerals. b) Express the population in words in Nepali as well as International syste of numeration. c) Compare the population of these countries. as well as in words. Vedanta Excel in Mathematics- Book 6 26