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Mass Conversion Inverse Operations

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Mass Conversion Inverse Operations

Mass Conversion Inverse Operations

Kangaroo carrying tonnes of eucalyptus leaves

🔢 Part 1: Mass Conversion Facts

1. Fill in the missing conversion facts:

1 tonne = _________ kilograms

2 tonnes = _________ kilograms

5000 kilograms = _________ tonnes

8000 kilograms = _________ tonnes

2. Circle the correct answer:

Which is heavier?

3 tonnes

2500 kilograms

🚛 Part 2: Real-World Problems

3. A truck carries 4 tonnes of fruit. How many kilograms is this?

Multiplication equation: _____ × _____ = _____

Answer: _________ kilograms

4. A container holds 6000 kg of rice. How many tonnes is this?

Division equation: _____ ÷ _____ = _____

Answer: _________ tonnes

5. You have 3 piles of sand. Each pile weighs 900 kg. What is the total mass in tonnes?

Answer: _________ tonnes

🔄 Part 3: Inverse Operations

6. Complete the fact families using inverse operations:

If 7 × 1000 = 7000, then:

7000 ÷ 7 = _____

7000 ÷ 1000 = _____

7. Find the unknown values:

_____ × 1000 = 9000

4000 ÷ _____ = 4

_____ tonnes = 12000 kg

8 tonnes = _____ kg

8. Check all the equations that are correct:

3 tonnes = 3000 kg

5000 kg = 5 tonnes

2 tonnes = 200 kg

7000 kg = 7 tonnes

🧮 Part 4: Problem Solving Challenge

9. A factory has 15 tonnes of steel. If it distributes the steel evenly into 5 trucks, how many kilograms of steel will each truck carry?

Answer: _________ kilograms per truck

10. Match the problems with their inverse operations:
1. 6 × 1000 = 6000
2. 8000 ÷ 1000 = 8
3. 4 × 1000 = 4000
A. 4000 ÷ 4 = 1000
B. 6000 ÷ 6 = 1000
C. 8 × 1000 = 8000
11. Explain how multiplication and division are inverse operations when converting between tonnes and kilograms:

🎯 Part 5: Extension Challenge

12. Create your own mass conversion problem and solve it using inverse operations:

My problem: ________________________________________________

Answer: ________________________________________________

13. A zoo has 3 elephants. Each elephant weighs 4 tonnes. The zoo also has 5 rhinos, each weighing 1500 kg. What is the total mass of all animals in kilograms?

Answer: _________ kilograms

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