1.Complete the table.

Answer :
   To convert into millilitres multiply by 1000.

2. Convert the following values into millilitres.
   (i) 3l    (ii) 1 l 500ml   (iii) 8l

     (i) 3l = (3 × 1000) ml = 3000 ml
   (ii) 1l 500 ml = (1 × 1000)ml + 500 ml = 1000 ml + 500 ml = 1500 ml
  (iii) 8l   = (8 × 1000) ml = 8000 ml

3. Convert the following into millilitres.
     (i) 6l 200ml      (ii) 7l 50ml      (iii) 9l 100ml

    (i) 6l 200ml = (6 × 1000) ml + 200 ml
                      = 6000 ml + 200ml
                      = 6200 ml
  (ii) 7l 50ml = (7 × 1000) ml + 50ml
                    = 7000 ml + 50ml
                    = 7050 ml
 (iii) 9l 100ml = (9 × 1000)ml + 100ml
                      = 9000ml + 100ml
                      = 9100ml

4. Complete the table

Answer :

To convert millilitres into litres divide millilitres by 1000.

5.Convert the following into litres and millilitres.
   (i) 3500 ml     (ii) 4150ml    (iii) 5500ml

   (i) 3500ml = 3000ml + 500ml
                    = (3000 ÷ 1000) + 500ml
                    = 3l 500ml
  (ii) 4150ml = 4000ml + 150ml
                   = (4000 ÷ 1000) + 150ml
                   = 4l 150ml
 (iii) 5500ml = 5000ml + 500 ml
                   = (5000 ÷ 1000) + 500ml
                   = 5l 500ml

6.Convert the following into litres and millilitres.
(i) 6200ml      (ii) 9050ml         (iii) 9250ml

   (i) 6200ml = 6000ml + 200ml
                   = (6000 ÷ 1000) l + 200ml
                   = 6l 200ml
  (ii) 9050ml = 9000ml + 50ml
                   = (9000 ÷ 1000) l + 50ml
                   = 9l 50ml
 (iii) 9250ml = 9000ml + 250ml
                   = (9000 ÷ 1000) l + 250ml
                   = 9l 250ml

7. Meera, Geetha and Priya went to a shop and bought the following things and made a list of them. (image from text) From the table given, find out how many litres of coconut oil, groundnut oil and Sunflower oil they bought?

   Coconut oil bought by Meera = 500ml
   Coconut oil bought by Geetha = 2l
   Coconut oil bought by Priya = 500ml
   Quantity of coconut oil bought by all of them
                     = 2l + (500ml + 500ml)
                     = 2l + (1000ml)
                     = 2l + (1000ml + 1000)
                     = 2l + 1l = 3l
   Groundnut oil bought by Meera = 3l 250ml
   Groundnut oil bought by Geetha = 1l
   Groundnut oil bought by Priya = 1l 500ml
   Quantity of groundnut oil bought by all of them
                     = 3l + 1l + 1l + (250ml + 500ml)
                     = 5l + 750ml
                     = 5l 750ml
   Sunflower oil bought by Meera = 2l
   Sunflower oil bought by Geetha = 500ml
   Sunflower oil bought by Priya = 1l
   Quantity of sunflower oil bought by all of them
                     = 2l + 1l + 500ml
                     = 3l 500ml

8. Add the following
   (i) 3l 250ml, 6l 150ml    (ii) 7l 850ml,  9l 300ml

   (i)                                (ii)
          
     = 9l 400ml                     = 17l 150ml

9.Subtract the following:
  (i) 34l 400ml from 84l 600ml
  (ii) 32l 800ml from 55 l 750ml

   (i)                                  (ii)
            
     = 50l 200ml                 = 22l 950ml

10. Multiply the following:
   (i) 9l 500ml by 8         (ii) 55l 400ml by 5

    (i)                                   (ii)
              
      = 76l                              = 277 l

11. Divide the following:
   (i) 24l 600ml ÷ 12         (ii) 81l 540ml ÷ 9

    (i)                               (ii)
                     
        = 2l 50ml                  = 9l 60ml

12.Deepthi poured 350ml of juice in the first bottle and 750ml of juice in the second bottle. How much of juice did she pour?

Juice in the first bottle = 350ml
Juice in the second bottle = 750ml
Total quantity of juice = 350ml + 750ml
                                = 1100ml (÷ 1000ml)
                                = 1l 100ml

13. A petrol pump sold 15l 500ml, 20l 100ml and 50l 200ml of petrol to three persons. Find the total quantity of petrol sold.

Total quantity of petrol sold =
                                     
                                      = 85l 800ml

14. A shop keeper sold 50l 500ml of sunflower oil and 35l 500ml of coconut oil. How many litres of oil did he sell?

    Quantity of sunflower oil sold = 50l 500ml
    Quantity of coconut oil sold = 35l 500ml
    Total quantity of oil sold =
                                
                                    = 86litres

15. Mr.David bought 20l of paint. After painting his house he had 4l of paint left. How much paint did he use?

    Quantity of paint bought = 20l
    Quantity of paint left = 14l
    Paint used for painting = 20l - 14l = 61

16. An oil drum contains 60l of oil in it. If 22l 500ml of oil is taken out of it. Find how much is left?

     Oil contained in the drum = 60l
     Quantity of oil taken out = 22l 500ml
     Quantity left = 60l - 22l.500ml = 37l 500ml
                                       

17. Swetha purchased 500ml of milk. She used 200ml during the day. How much milk is left over?

    Milk purchased = 500 ml
    Milk used = 200ml
    Milk left = (500 - 200)ml = 300ml

18.There are two water tanks on the terrace of a building. One tank can hold 90l of water and the other one can hold 80l of water. How much more water can the first tank hold than the second one?

   First tank can hold = 90l of water
   Second tank can hold = 80l of water
   First tank can hold 10l of water more than the second one.

19. If a jar fills 150ml of water, how much of water 4 such jars can fill?

    Quantity a jar can hold = 150ml of water
    Quantity of water such 4 jar can hold = (150 × 4)ml = 600ml

20.One Can can contain 3l 500ml of petrol. How much petrol can 8 Cans contains?

     Quantity of petrol of one Can hold = 3l 500ml
     Quantity of 8 such Cans can hold =
                                          
                                 = 28 litres of petrol

21.The capacity of one flask in 1l 500ml. What is the total capacity of 9 such flasks?

      Quantity of one flask can hold = 1l 500ml
      Quantity of 9 such flask can hold =
                                  
                                    = 13l 500ml

22. In the following each diagram pattern, count the number of match boxes and write in the given box.
 

Answer :

23.  Patterns with bricks are given below. Find the number of bricks used and write in the given box.

Answer :

                          
          Even though, they differ in pattern, their volume is same.

24. Observe the patterns given below. Count the number of match boxes and write it. Also count the number of match boxes required to complete the solid shape. Then count the total number of match boxes present in the full solid shape.

Answer :

25. Find the number of match boxes in each figure by counting them and write it in the box given below.

Answer :