13, జులై 2014, ఆదివారం

Mallapragada's Mathematics - (7th Standard-3)

                                                                       
                                                                 

1 .Add 2 2/5 + 3 1/5 + 4 4/5 ---------


2. Sub. 3 3/8 – 4 1/8 =…………………..


3. 2/5, 1/3, 3/10,4/10 Arrange the ascending order--------


4. 1/3 of 12 + 2/5 of 15 =…………………………………


5. 2 1/3 x 3 1/5 x 4 1/3 =……………………………..


6. Find 0.25 + 6.00 + 30.00 – 25.97 = ……………………..


7. Write the place value of 3 in the following decimal number

     7.43=………………


8. Solve  101.01 x 0.01 =…………….


9. Write 5 equivalent  retional  number to 5/2          ………………………..


10. Write tree equal rational numbers to 2/3  …………………………


11. write the following number in their expanded form 30.807

         ………….


12. Express 10 cm in meter and kilometer …………………….


13. express 60 mm in centimeter, meter and kilo meter------


14. 2/3rd of a cake was cut and distributed. The rest of the part

         is ……………………………


15. 2/6   / 3/6 =………………………


16. A rectangle is of dimensions 3 ¼ cm. and 2 2/5 cm then the

       perimeter is ………………..


17. 8/18 x  a/32 = 3/8              find a ………………


18. 1000 x 9 + 10x7 + 6 x 1/10 +5 x 1/1000 =……………….


19. 3 1/3 + 2 1/5 + 4 2/3 = ……………………………


20.  A rainfall of 0.596 cm was recorded in 7 hours, what was the average amount of rain per hour. 



21 A rectangular sheet of paper is 3 2/5 Cm long and 5/1/3 Cm wide.  Find  perimeter.



22.The receipt requires 4 1/3cupsof flour. Ram has 1 3/6 cups of flour.  How many more cups of flour does he need?



23.Ram is preparing for his final exam.  He has completed 5/12 part of his course content find out how much course content is left. 10 2/3 liters of petrol ?



24.Krishna works 3 ½ hours each day on her embroidery.  She complete the work in 6 days.  How many hours did he take to complete the work?



25.A trunk runs 8 km using 1 liter of petrol.  How much distance will it cover using 10 2/3 liters of petrol ?



26.Raja walks 1 ½ meters in 1 second.  How much distance will the walk in 15 minutes?



27. Rama can paint 1/4 at a house  in one Second. How much distance will he walk in 20 minutes ? 











































































































Om Sri ram              Om Sri Ram         Om Sri Ram 
                                          


1 .Add 2 2/5 + 3 1/5 + 4 4/5 =  52/5


2. Sub. 3 3/8 – 4 1/8 = -3/4


3. 2/5, 1/3, 3/10,4/10 Arrange the ascending order-=3/10,1/3,2/5


4. 1/3 of 12 + 2/5 of 15 = 10


5. 2 1/3 x 3 1/5 x 4 1/3 = 1454/45 = 32.35.


6. Find 0.25 + 6.00 + 30.00 – 25.97 = 10.28.


7. Write the place value of 3 in the following decimal number

     7.43= 3/100


8. Solve  101.01 x 0.01 = 1.01


9. Write 5 equivalent    rational  number to 5/2= 5/2,10/4, 15/6,

    20/8, 25/10,30/12.


10. Write tree equal rational numbers to 2/3 

       =4/6,6/9,8/12,10/15,12/18


11. write the following number in their expanded form 30.807

       10 x3 +1x0 +1/10 x 8 +1/100 x0 + 1/1000 x 7=

       30+8/10 +7/1000


12. Express 10 cm in meter and kilometer =10/100 m,=0.1m

       And 10/100 x 1000 km =0.0001km.


13. express 60 mm in centimeter, meter and kilo meter--=

      60/10 Cm. =6Cm, 4.5/100m = 0.045m and

       0.045km/1000=0.000045km


14. 2/3rd of a cake was cut and distributed. The rest of the part

         is = 1-2/3=1/3


15. 2/6  /  3/6 = 2/6 x 6/3 = 2/3


16. A rectangle is of dimensions 3 ¼ cm. and 2 2/5 cm then the

       perimeter is …2(13/4 + 12/5)= 2(65+48)/20 = 113/10=11.3


17. 8/18 x  a/32 = 3/8              find a = 3/8 x18/8x32=27


18. 1000 x 9 + 10x7 + 6 x 1/10 +5 x 1/1000 = 9070.605.

19. 3 1/3 + 2 1/5 + 4 2/3 = 10.2


20.  A rain fall of 0.596 cm was recorded in 7 hours, what was the average amount of rain per hour.           
 596/1000/7/1=596/1000x1/7 =0.596/7



21 A rectangular sheet of paper is 3 2/5 Cm long and 5/1/3 Cm wide.  Find  perimeter.

Ans. L = 3 2/5 = 17/5   and Width = 5 1/3 = 16/3

         Perimeter = 2(L+B) = 2 (17/5 + 16/3) = 2(51 +80)/15 =

                              =262/15 = 17 7/15



22.The receipt requires 4 1/3cupsof flour. Ram has 1 3/6 cups of flour.  How many more cups of flour does he need?

Ans. 4 1/3 – 1 3/6 = 13/3 – 9/6 = 13/3 – 3/2 = (26 -9)/6=17/6

23.Ram is preparing for his final exam.  He has completed 5/12 part of his course content find out how much course content is left.  ?
Ans. 1-5/12 = (12-5)/12 = 7/12

24.Krishna works 3 ½ hours each day on her embroidery.  he complete the work in 6 days.  How many hours did he take to complete the work?
Krishna worked each day = 3 ½  = 7/2
He complete the work in 6 days
Total time worked: 6 x 7/2 = 21.

25.A trunk runs 8 km using 1 liter of petrol.  How much distance will it cover using 10 2/3 liters of petrol ?
Distance covered with 1 leter of petrol = 8 Km.
10 2/3 lidter petrol = 8 x 32/3 = 256/3

26.Raja walks 1 ½ meters in 1 second.  How much distance will the walk in 15 minutes?
 Ans.  1 ½ m in one sec. walk in 15 minutes
           3/2 x 60 x 15 = 1350

27. Rama can paint 1/4 at a house  in one Second. How much distance will he walk in 20 minutes ?
Ram in one day paint   ¼ th
Distance covered by ram in 20 minutes = 20 x 60 x ¼ =300 m