4, ఫిబ్రవరి 2015, బుధవారం

209/1. Mallapragada's Mathematics (6th Standared)

  Om Sri Ram           Om Sri Ram            Om Sri Ram


  PREFACE (Practice Mathematics)
THE MATHEMATICS HAS BEEN PUBLISHED IN MY BLOG TO HELP STUDENTS TO TEST THEIR KNOWLEDGE. AND ALSO USEFUL FOR D.S.E.R.T,  N.C.E.R.T., B.S.R.B. S.S.C., U.P.S.C., K.P.SC, OTHER COMPETITIVE EXAMINATIONS.AND QUIZ PROGRAM MES.

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          By.
                    Mallapragada Ramakrishna, B.Sc.
                           Telugu writer and Mathematics Master .


                                                                               ప్రాంజలి       
సర్వేజనా సుఖినోభవంతు
 ఓం శాంతి:  ఓం శాంతి: ఓం శాంతి:

O.Q Mathematics – 6th class-(part-1)
1. The smallest two digit number is ……………

2. The smallest three digit number is ……………

3. The smallest four digit number is ……………

4. The smallest five digit number is ……………

5. The smallest six digit number is ……………

6. The smallest seven digit number is ……………

7. The smallest eight digit number is ……………

8. The grate  two digit number is ……………

9. The greatest three  digit number is ……………

10. The greatest four digit number is ……………

11. The grate  five digit number is ……………

12. The greatest six  digit number is ……………

13. The greatest seven digit number is ……………

1.4 The greatest seven digit number is ……………

15) one cror,  how many Lakhs and thousands

16) 1 lakhs , how many thousands and hundreds   

17. The unit of length is -----------

18. The unit of weight is -----------

19. The unit of volume is ---------------

20. The unit  of time is ----------

21. 10 millimeters =--------------

22. 100 centimeters =-------------

23. 1000 meters    = -----------------

24. 1 Kilometer =--------------

25. 1 Kilogram  =------------------

26. 1 Kilo liter     = ---------------

27. which is the greatest and smallest among the numbers
 2564 ,  2583,  2546,2541  greatest and smallest ?

28. In The number 1234567, the digit at hundreds place is ----- 

29. What number is to be added to the greatest five digit number to make it on lakh? -------------

30. The mark which helps us in reading and writing of large numbers is --------------

31. The symbol that denotes is greater than is -------------

32. The symbol the stands for is less than is--------------

33.  One million is --------------lakhs.

34. One billion is -------------------Cror

35. 1,00,00,000 is called-------------

36. Place value of 8 in  12381275 is -----------

37. Round off 264 to nearest hundred ------------

38. The greatest number formed with the digits 2,5,7,0,3, is ----

39. Put appropriate symbol in the space given : 425 …..452

40. Put appropriate symbol in the space given: 2654 -----2564

41. A news paper is published every day.  It contains 12 pages. 10000 copies are printed. How many pages are printed every day?

42. The employees visited to different villages towards recorded of old age People I st day 25,000, 2nd day  35,000
And  third day 10,000. Find the total number of People visited in these three days?   

43.In Lok Sabha  election, the elected candidate got 5,00,000 votes and defeated candidate got 3,00,000. B how many votes did the winner win the election?

44. A bicycle industry makes 3,000 bicycles each day. Find the total number of bicycles manufactured for the month of november ?

45. A helicopter covers 500 km in 1 hour.  How much distance will it cover in 5 hours.  Express our answer in meters.

46. The total weight of a box of 5 biscuit packets of same size is 5kg 500 grams. What is the weight of each packet?

47. The distance between the temple and the bus stop is 1km 500 m. Every day Ramakrishna walks both ways to attend the temple. Find the total distance he walked in 10 days.

48. The cloth required to make a shirt of school uniform for each boy is 1m50 cm. How man shirts tailor can stitch by using 40 m. of cloth? How much cloth will be left?


                                                                      

Ans. 1) =10, 2) =100, 3)1000, 4)10000 5)100000, 6)=1,000000
7)=10000000,8)=99, 9)=999 10)9999 11) 99999 12) 999999
13) 9999999  14) 99999999  15) 100 lakhs, 10,000 thousands
16) 100 thousands, 1000 hundreds  17) meter  ,18) Kilogram ,19) liter 20) second  21) 1 Centimeter  ,22) 1 meter  23) 1 kilometer 24) 1000x100x10 millimeters =10,00,000m.m
25) 1000 grams and 1 gram = 1000 milligrams 26) 1000 liters
27). greatest No. 2583, smallest No. 2541 28). 5 29) 1                 30) comma 31) >  32)  < 33). 10   34) 100  35) One crore            36) 80000 37)300  38)75320  39)  “< “ 40) “ > “
41. No. of copies printed ever day=10,000,
each cop has 12 pages,
 Hence the No. of pages printed =10,000x12 =1,20,000
42. 70,000  43) 2,00,000
 44) No. of days month of nov. = 30
Number of bicycles made in 30 days = 3000 x 30 =90,000

45. We know that 1 Km =1000 meters.
       Distance covered by helicopter in 5 hours = 2500Km
       =2500 x 1000 meters = 25,00,000 meters.

46. Total weight of 5 biscuit packets = 5kg 500 grams.
       The weight of each packet = 5kg 500grams /5
          = 1kg 100 gms.

47. Distance between the Temple and the bus stop =1km 500m
       Ever day from the bus stop to temple and vice varca
      1.500m + 1.500m = 3km
      Total distance Ramakrishna  walked in 10 days= 3x10=30km

48. The cloth to be stitched = 40 m = 40 x 100 = 4000cm.
       The cloth required one short 1m.50 cm= 150 cm.
       Number of shirts stitched = 4000/150 =26.66 = 26 2/3
       The tailor can stitch 26 shirts.
       The cloth that will be left = 2/3 x 150 =100cm. = 1m




1. 9123456789      write in words (Indian system)---------



2. 9123456789      write in words (International system)---------



3.Read the number carefully  i.e 123,456,789

a).The digit at millions place --------

b) The digit at hundreds place--------

c) The digit in ten millions place -------  



4. What is the least whole number?



5. which numbers can be show as squares ?



6. which number can be shown as trangle?



7. which numbers can kbe shown as rectangles?



8. The successor of 999 is ----------------

9. The predecessor of 200 is -------------



10. division by zero is -----------------------



11. The set of whole numbers is represented b the letter ------



12. The set of natural numbers is represented by the letter----



13. The number in the set of natural numbers has no predecessor ----------------



14. multiply simple modal i.e. 65 x 99=



15. Addition of whole numbers can be represented on -----------



16. When ever we add two numbers we move on the number line towards-----------------



17. Moving towards left on the number line means ---------

18 write the whole number  --------------------- 



19. division b zero is -------------------------



20. write ex. Commutative property of addition for whole numbers---------------------



21. write ex. Commutative property of multiplication  for whole numbers---------------------



22. write ex. Associative property of addition for whole numbers---------------------



23. write ex. Associative property of multiplication  for whole numbers---------------------



24.  ------------------is called the Additive identity for whole numbers.



25. The number of whole numbers between 2 and 10 is---

26. The number to be added to 5 to get 12 on the number line is ------------



27. the number to be deducted from 7 to ge 1 on the number line is-------------



28. The sum of the whole numbers between 10 and 15 is-------



29. A number that can be arranged as a line and a triangle is-----



30. express 20 x 72 using distributive property ----------



31. can you tell where we use milligrams. ?



32. Rama and Krishna purchased 12 not books and 20 note books respectively cost of each notebook is Rs. 20, then how much amount should pay for the shop keeper ?


    Answers                                         


Om Sri RAm          Om Sri Ram           Om. Sri Ram
Answers

1. 912,34,56,789 = nine hundred Twelve crores  thirty four lakhs  fifty six thousand seven hundred and eight nine only



2. 9,123,456,789 = Nine billion  one hundred twenty three million  four hundred fifty six  thousand seven hundred and eighty nine.  

 3 Ans a) 3    b)7   c) 23   4. “0”  5. 4,9,16,25,36,49………

6.( 3,6,9,15,21) 7. Product of two numbers can be show as triangle  6=2x3, 8 2x4, 10 = 2x5, 12 = 2x6  ………

8. 1000  9. 199  10, undefined 11. W, 12. N , 13. 1, 14.65(100-1)

6500-65=  6435, 15, number line 16, Right starting from any of them  17. Substraction.  18, ‘0’  19. Undefined 20. 3+4=7, 4+3=7

21. 2x5=10  , 5x2 = 10, 22. (5+6) + 7= 5+(6+7),

 23. (2x3)x4= 2x(3x4)  24. Zero. 25. 7 , 26. 6 27. 6,

 28. 11+ 12+13+14=50,  29. 3 ,  30. 20 x(70+2)

31. 1) Silever, 2) Gold 3) mercury 4) platinum etc.

Rs. 20x12 + 20 x 20 = 20(12+20) = Rs.640


 
























































1. A certain freezing process requires that room temperature be lowered from 500C at the rate of 50C every hour.  What will be the room temperature 10 hours after the process begins?



2. A merchant  on selling rice earns a profit of Rs. 20 per bag of fine  rice sold and loss Rs. 10 per bag of non-fine rice.



i) He sells 5000 bags of fine rice and 3000 bags of non – fine rice in a month.  What is his profit or loss in the month?

ii)What is the number of Fine rice bags he must sell to have neither profit nor loss, if the number of bags of non-fine rice sold is 6,400.



3. A cement company earns a profit of Rs. 10 per bag of white cement sold and a loss of Rs. 5 per bag of grey cement sold.



i)                  He company sells 8000 bags of white cement and 6000 bags of grey cement in a month.  What is its profit or loss?



ii)               What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 5,400



4. The temperature at 12 noon was 100 C  above zero.  If it decreases at the rate of 20 C per hour until mid-night at what time would the temperature be 60 C below zero. What would be the temperature at mid-night ?



5. In a class test (+3) marks are given for eery correct answer and (-2) marks are given for every incorrect answer and no marks for not attempting any question.

i) Radhika scored 20 marks.  If she has got 12 correct answers, how many questions has she attempted incorrectly?



ii) Mohini  scores (-5) marks in this test, though she has got 7 correct answers.  How many questions has she attempted incorrectly. 



6. An elevator descends into a mine shaft at the rate of 6 meters per minute. If  the  descent stars from 10m above the ground level.  How long will it take to reach – 350m



7. Krishna deposited Rs. 100 with her mother.  He withdraws Rs. 50 from her mother on the next now what is the money with his mother?



8. There is a class test for 25 marks.  Sheeta lost 10 marks and Gopi lost 8 marks.  What were marks at the test?



9. In a freezing process the temperature is to be lowered to    200 C. If the room temperature 300 C, how much it should be reduced?



10. Simplify  -1-2-3-……(-20)



11. Ram won 10 marbles in a game on a particular day.  He lost 3,5,6 and 8 on the following Find his net gain or loss.



12. A Fine of Rs. 5 is collected on every Rs. 100 to be deposited with post office. What was the fine a sum of Rs. 1200 ?



13. In a test of 15 Questions, every correct answer gets 5 marks and every wrong answers was get (-2) marks.  Rama answered all questions, out of which 8 are correct what is his total score?



14. In a quiz every right answer carries 10 marks and every wrong answer (2) marks.  It a total of 12 questions were asked of which 8 are correct, find the total score.



15. A fruit seller gains Rs. 200 on every dozen mangoes sold and loses Rs. 25 on every dozen apples sold.  If he sells 5 dozen mangoes and 10 dozen apples, what is his net gain or loss on the whole transactions?

6th class (Part-1) Answers.
 Om Sri Ram    Om Sri Ram     Om Sri Ram

                                        



Ans. 1) =10, 2) =100, 3)1000, 4)10000 5)100000, 6)=1,000000
7)=10000000,8)=99, 9)=999 10)9999 11) 99999 12) 999999
13) 9999999  14) 99999999  15) 100 lakhs, 10,000 thousands
16) 100 thousands, 1000 hundreds  17) meter  ,18) Kilogram ,19) liter 20) second  21) 1 Centimeter  ,22) 1 meter  23) 1 kilometer 24) 1000x100x10 millimeters =10,00,000m.m
25) 1000 grams and 1 gram = 1000 milligrams 26) 1000 liters
27). greatest No. 2583, smallest No. 2541 28). 5 29) 1                 30) comma 31) >  32)  < 33). 10   34) 100  35) One crore            36) 80000 37)300  38)75320  39)  “< “ 40) “ > “
41. No. of copies printed ever day=10,000,
each cop has 12 pages,
 Hence the No. of pages printed =10,000x12 =1,20,000
42. 70,000  43) 2,00,000
 44) No. of days month of nov. = 30
Number of bicycles made in 30 days = 3000 x 30 =90,000

45. We know that 1 Km =1000 meters.
       Distance covered by helicopter in 5 hours = 2500Km
       =2500 x 1000 meters = 25,00,000 meters.

46. Total weight of 5 biscuit packets = 5kg 500 grams.
       The weight of each packet = 5kg 500grams /5
          = 1kg 100 gms.

47. Distance between the Temple and the bus stop =1km 500m
       Ever day from the bus stop to temple and vice varca
      1.500m + 1.500m = 3km
      Total distance Ramakrishna  walked in 10 days= 3x10=30km

48. The cloth to be stitched = 40 m = 40 x 100 = 4000cm.
       The cloth required one short 1m.50 cm= 150 cm.
       Number of shirts stitched = 4000/150 =26.66 = 26 2/3
       The tailor can stitch 26 shirts.
       The cloth that will be left = 2/3 x 150 =100cm. = 1m




Part (3) Answers.
Om Sri Ram        Om Sri Ram         Om Sri Ram 


1.Solution of 5x + 5 = 15 is ………………..


2. 5x + 10 = K then x =……………………..


3. A number increased by 10 is represented as ……………….


4. Sum of two numbers is 30.  In one number is x then the other

    is ………….


5. Age of a son is 20 years what is the age after x years……


6. A quantity which divides L.H.S. of an equation ----the R.H.S.


7. L.H.S and R.H.S. of the equation 2(1/4x-4)=5(23-5) is  =…..


8. 3 times a number exceeds 30 by  3 How do you represent this ?............................


9. 3x + 30 = 5x – 10 then x ………………….


10. 5x + 8 = 5x – K then K =…….


11. the L.H.S. and R.H.S. of an equation are interchange then their values…………………….


12. Sum of the age of Ram and his father is 50if father’s age is 40, then Rama’s age is …………..


13. Twice of a number plus 10 is 100. Write simple equation for this ………………………


14. One and half  times a number 20 then the number is  ……….


15. In a triangle the three sides are x, 2x, x+3.  If  the perimeter is 30 m.  The largest side is …………………..


16. Angle ‘ a ‘ angle ‘ b ‘ are linear pair of angles . If angle A = 1000 Than angle ‘ b ‘ = ?


17. The length of a rectangle is 3 more than its breath. If the perimeter is 60m then its length is …………


18. After 10 years Rama’s age is 30 years.  What is his present age?


                                                                                        
1.Solution of 5x + 5 = 15 is …2…


2. 5x + 10 = K then x =…… (K-10)/5



3. A number increased by 10 is represented as …  10 + x



4. Sum of two numbers is 30.  In one number is x then the other

    is …30 - x



5. Age of a son is 20 years what is the age after x years…20 + x



6. A quantity which divides L.H.S. of an equation -Multiplies---the R.H.S.



7. L.H.S and R.H.S. of the equation 2(1/4x-4)=5(23-5) is  = Not Equal…..



8. 3 times a number exceeds 30 by  3 How do you represent this ?. 3x = 33....



9. 3x + 30 = 5x – 10 then x …= 20……………….


10. 5x + 8 = 5x – K then K =…-8



11. the L.H.S. and R.H.S. of an equation are interchange then their values… Remain the same….



12. Sum of the age of Ram and his father is 50if father’s age is 40, then Rama’s age is .10



13. Twice of a number plus 10 is 100. Write simple equation for this  2x + 10 =100



14. One and half  times a number 20 then the number is                

          X =40/3……….



15. In a triangle the three sides are x, 2x, x+3.  If  the perimeter is 23 m.  The largest side is …10m………………..



16. Angle ‘ a ‘ angle ‘ b ‘ are linear pair of angles . If angle A = 1000 Than angle ‘ b ‘ = 800


17. The length of a rectangle is 3 more than its breath. If the perimeter is 60m then its length is  [2(x+x-3)] =60,…4x-8=60, 17



18. After 10 years Rama’s age is 30 years.  What is his present

age?

Sol. X + 10 = 30, x = 40