Convert the following measurements between metres and kilometres. Also, complete a practical measurement activity.

Here are the solutions for the problems:

1. Write the following in kilometres:
To convert metres to kilometres, divide by 1000.

• a. $1000 \text{ m} = \frac{1000}{1000} \text{ km} = \boxed{\text{1 km}}$
• b. $700 \text{ m} = \frac{700}{1000} \text{ km} = \boxed{\text{0.7 km}}$
• c. $150 \text{ m} = \frac{150}{1000} \text{ km} = \boxed{\text{0.15 km}}$
• d. $270 \text{ m} = \frac{270}{1000} \text{ km} = \boxed{\text{0.27 km}}$
• e. $100 \text{ m} = \frac{100}{1000} \text{ km} = \boxed{\text{0.1 km}}$
• f. $920 \text{ m} = \frac{920}{1000} \text{ km} = \boxed{\text{0.92 km}}$

2. Write the following in metres:
To convert kilometres to metres, multiply by 1000.

• a. $1 \text{ km} = 1 \times 1000 \text{ m} = \boxed{\text{1000 m}}$
• b. $0.5 \text{ km} = 0.5 \times 1000 \text{ m} = \boxed{\text{500 m}}$
• c. $0.250 \text{ km} = 0.250 \times 1000 \text{ m} = \boxed{\text{250 m}}$
• d. $2 \text{ km} = 2 \times 1000 \text{ m} = \boxed{\text{2000 m}}$
• e. $1.4 \text{ km} = 1.4 \times 1000 \text{ m} = \boxed{\text{1400 m}}$
• f. $1.25 \text{ km} = 1.25 \times 1000 \text{ m} = \boxed{\text{1250 m}}$

3. Do this practical activity in your class.

Part 1:

• a. How many metres is it from the back of your class to the front? This requires a physical measurement of your classroom. $$\boxed{\text{Measure your classroom}}$$
• b. How many metres is it from the one side to the other side of your class? This requires a physical measurement of your classroom. $$\boxed{\text{Measure your classroom}}$$
• c. If a classroom is 10 m long, how many classrooms can you fit into 1 km?