10, ఫిబ్రవరి 2015, మంగళవారం

213/5. Mallapragada's Mathematics (6th Standared)



 1.Express 50 paise using decimal ----------------------



2. Express 10cm 8mm in decimal-----------------------



3.express 5 2/5 as decimal--------------------------------



4. Express 300 +60+5+ 1/10 as decimal -----------------



5. write “Two tens and nine-tenths” using decimal ------



6. Write 13/8,7/8,1/8,5/8 in decending order ------------



7. The first equivalent fraction of 2/3 is --------------------



8. Substract 16.30 from 20.30 -------------------------------



9. Reduce 150/40 to simplest form -------------------



10. 5/7 of 140 is  ----------------------



11.If 1/3 of a number is 14, then the number is -------------



12.-------   -   3/21 = 5/21



13. ------   +  5/27 = 12/27



14.Rama read 25 pages of a story book containing 100 pages. Lalitha read 2/5 of the same story book. Who read less?



15.Krishna pinted 2/3 area of the wall in his room.  His brother rama helped and painted 1/3 area of the wall.  How much did they paint together?



16. A piece of rod 7/8 metre long is broke into two pieces.  One piece was ¼ metre long. How long is the other place?



17. Ranu takes 21/3 minutes to walk around the school ground. Sudha takes 7/4 minutes to do the same.  Who takes less time and by what fraction?


18. Rewrite in decending order i.e. 8.6, 8.50, 8.1, 8.80



19. Write the following fractional number in ascending order

     i.e. 1/5, ½, 1/8, 1/3, 1/12



20. Write 5 fractional numbers that are in the standard form.



                                                                          
Answers
Om Sri Ram,      Om Sri Ram        Om Sri Ram




1.Express 50 paise using decimal -----0.50---



2. Express 10cm 8mm in decimal------10.80--



3.express 5 2/5 as decimal-------------5.4----


4. Express 300 +60+5+ 1/10 as decimal ------365.1----

5. write “Two tens and nine-tenths” using decimal -20.9-

6. Write 13/8,7/8,1/8,5/8 in decending order –13/8, 7/8, 5/8 1/8---

7. The first equivalent fraction of 2/3 is -----4/6 ---------

8. Substract 16.30 from 20.30 ------ 4. 0.-------

9. Reduce 150/40 to simplest form -------15/4--------

10. 5/7 of 140 is  ------100 ----

11.If 1/3 of a number is 14, then the number is 14 x 3= 42

12.-8/21   -   3/21 = 5/21

13. 7/27  +  5/27 = 12/27

14.Rama read 25 pages of a story book containing 100 pages. Lalitha read 2/5 of the same story book. Who read less?
a story book containing 100 pages.
Rama read 25 pages
Number of pages that Lalitha read =2/5 x 100=40
So, rama read less pages.

15.Krishna pinted 2/3 area of the wall in his room.  His brother rama helped and painted 1/3 area of the wall.  How much did they paint together?
Krishna pinted 2/3 area
rama helped and painted 1/3 area
2/3 + 1/3 =(2 + 1)/3 =3/3 =1

16. A piece of rod 7/8 metre long is broke into two pieces.  One piece was ¼ metre long. How long is the other place?
A piece of rod 7/8 metre
One piece was ¼ metre
Length of the other place = 7/8 -1/4 =     7-2/8 =5/8

17. Ranu takes 2 1/5 minutes to walk around the school ground. Sudha takes 7/4 minutes to do the same.  Who takes less time and by what fraction?
Ranu takes 2 1/5 minutes  = 11/5
Sudha takes 7/4 minutes   = 7/4    11/5 – 7/4  = 44-35/20 =9/20

18. Rewrite in decending order i.e. 8.6, 8.50, 8.1, 8.80
      Ans. 8.80 , 8.6, 8.5, 8.1

19. Write the following fractional number in ascending order
     i.e. 1/5, ½, 1/8, 1/3, 1/12
 Ans.     3)5,8,3,12           L.C.M 3x4x5x2 120
               4) 5,8,1,4      
                   5,2,1,1      1x24/5x24 =24/120 , 1x 60/2x60 =60/120
  1 x 15/8 x15=15/120,1x40/3x40=40/120  1x10/12x10 =10/120
  10/120 <15/120 <24/120, <40/120, <60/120   
   1/12<1/8<1/5<1/3<1/2

20. Write 5 fractional numbers that are in the standard form.
Ans. ½,2/3,3/4,4/55/6,