Mathematics
METRIC UNITS
METRIC UNITS
In this topic, students develop the ability to perform multiplication and division involving units of length, mass, and time.
Operations (× and ÷) on units of length (mm, cm, m and km)
Multiply units of length
Multiply units of length
Activity 51
Study the following examples
Exercise 43
Perform the following operation
Divide units of length
Divide units of length
Activity 52
Exercise 44
Divide the following
Solve word problems involving units of length
Solve word problems involving units of length
Example 10
Study the following examples
Exercise 45
Find the solution of the following problems
- A road is 6 km long. How long are 5 such roads altogether?
- A rope is 8 m long. How long will 4 such ropes be when joined together?
- A ribbon is 24 cm long. It is cut into 6 equal pieces. What is the length of each piece?
- A runner covers 3 kmin one race. How far will the runner cover in 7 races?
- A wire of 40 m is divided equally into 5 parts. What is the length of each part?
- A piece of cloth is 9 m long. What will be the total length of 3 such pieces?
- A stick of 36 cm is cut into pieces of 4 cm each. How many pieces are obtained?
- A cyclist travels 12 km in one trip. How far does the cyclist travel in 6 trips?
- A cable of 48 m is shared equally among 8 people. How much cable does each person get?
- A tape is 7 cm long. What is the total length of 9 such tapes?
Operations (× and ÷) on units of mass (mg, cg, g and kg)
Multiply units of mass
Multiply units of mass
Activity 53
Go through the following examples and then do the exercise
Exercise 46
Perform the following operation
- 4 kg × 3
- 6 g × 5
- 9 kg × 2
- 7 g × 4
- 8 kg × 6
- 12 g × 3
- 5 kg × 9
- 15 g × 2
- 11 kg × 7
- 25 g × 4
Divide units of mass
Divide units of mass
Example 11
Study the following examples
Exercise 47
Do the following exercise
Solve word problems involving units of mass
Solve word problems involving units of mass
Example 12
Go through the following examples
Exercise 48
Do the following exercise
Operations (× and ÷) on units of time (seconds, minutes and hours)
Multiply units of time
Multiply units of time
Example 13
Study the following examples
Exercise 49
Do the following examples
Divide units of time
Divide units of time
Activity 54
Study the following examples
Exercise 50
Do the following exercise
Solve word problems involving units of time
Solve word problems involving units of time
Activity 55
Study the following examples
Exercise 51
Solve the following problems
Listening to this topic
