Convert 7.8 Tonnes to Kilograms: Metric Unit Conversion

Metric Conversions with Tonne to Kilogram

7.8T=?kg 7.8T=?kg

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1

Understand the problem

7.8T=?kg 7.8T=?kg

2

Step-by-step solution

The letter T indicates a metric tonne,

One tonne is equivalent to one thousand kilograms,

Therefore, in 7.8 tons there are

1000*7.8 = 7800 kg

3

Final Answer

7800 7800

Key Points to Remember

Essential concepts to master this topic
  • Conversion Rule: One tonne equals exactly 1,000 kilograms
  • Technique: Multiply tonnes by 1000: 7.8×1000=7800 7.8 \times 1000 = 7800
  • Check: Divide answer by 1000: 7800÷1000=7.8 7800 ÷ 1000 = 7.8 tonnes ✓

Common Mistakes

Avoid these frequent errors
  • Dividing instead of multiplying by 1000
    Don't divide 7.8 by 1000 = 0.0078 kg! This makes kilograms smaller than tonnes, which is backwards. Always multiply tonnes by 1000 because tonnes are much larger units than kilograms.

Practice Quiz

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\( 7kg=?gr \)

FAQ

Everything you need to know about this question

Why do I multiply by 1000 instead of divide?

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Because tonnes are bigger than kilograms! Think of it like this: one tonne is heavy enough to equal 1000 kilograms, so more kilograms are needed to equal fewer tonnes.

How can I remember which way to convert?

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Use this memory trick: Tonnes are Thousands of kilograms! When going from a bigger unit (tonnes) to a smaller unit (kg), you always get more of the smaller unit.

What if I get a decimal answer that seems wrong?

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Check your direction! If you're converting 7.8 tonnes to kg and get 0.0078, you divided instead of multiplied. The answer should be larger than 7.8, not smaller.

Are metric tonnes and regular tonnes the same?

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Yes! In most countries, when we say "tonne" we mean the metric tonne (1000 kg). This is different from the imperial ton used in some places, but for school math, assume metric tonnes.

Do I need to show the multiplication in my work?

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Yes! Always write: 7.8×1000=7800 7.8 \times 1000 = 7800 kg. This shows you understand the conversion factor and helps catch mistakes if you accidentally divide.

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