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4. Convert the following into L and mL.
a. 4500 mL b. 8756 mL c. 9767 mL d. 1808 mL

5. how much liquid in millilitres is there in each container?
a. b. c.
5 L 5 L 5 L
4 L 4 L 4 L
3 L 3 L 3 L

2 L 2 L 2 L
1 L 1 L 1 L

mL mL mL

AddITIon And SuBTrACTIon oF CApACITIeS

example 1. Find the sum:

a. 42 L 950 mL and 20 L 75 mL
b. 165 L 240 mL, 16 L 325 mL and 68 L 15 mL

Solution. Arrange the given measures in columns with the appropriate units and then
find the sum.
a. L mL

1 1
4 2 9 5 0 42 L 950 mL + 20 L 75 mL = 63 L 25 mL
+ 2 0 0 7 5
6 3 0 2 5

b. L mL

1 1
1
1 6 5 2 4 0 165 L 240 mL + 16 L 325 mL + 68 L 15 mL
1 6 3 2 5 = 249 L 580 mL
+ 6 8 0 1 5
2 4 9 5 8 0

example 2. Subtract:
a. 19 L 485 mL from 31 L 50 mL b. 45 L 65 mL from 100 L
Solution. Arrange the given measures in columns correctly and then subtract.

a. L mL

2 10 9 14 10
3 1 0 5 0 31 L 50 mL – 19 L 485 mL = 11 L 565 mL
– 1 9 4 8 5
1 1 5 6 5

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Measurement