Convert $0.18 to Centavos: Decimal-to-Currency Problem

Currency Conversion with Decimal Multiplication

Convert dollars to cents:

0.18 $ =? cents

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1

Understand the problem

Convert dollars to cents:

0.18 $ =? cents

2

Step-by-step solution

In order to answer this question, one must understand that one dollar is equivalent to 100 cents.

Therefore, one dollar is 0.01 cents.

0.18 dollars, therefore, is 18 cents.

You can also achieve this if we multiply by 100.

0.18*100=18

3

Final Answer

18 18

Key Points to Remember

Essential concepts to master this topic
  • Rule: One dollar equals 100 cents for all conversions
  • Technique: Multiply dollars by 100: 0.18×100=18 0.18 \times 100 = 18
  • Check: Reverse division: 18 ÷ 100 = 0.18 dollars ✓

Common Mistakes

Avoid these frequent errors
  • Dividing by 100 instead of multiplying
    Don't divide 0.18 ÷ 100 = 0.0018 cents! This gives way too small an answer because you're going the wrong direction. Always multiply by 100 when converting dollars to cents.

Practice Quiz

Test your knowledge with interactive questions

Convert dollars to cents:

0.18 $ =? cents

FAQ

Everything you need to know about this question

Why do I multiply by 100 to convert dollars to cents?

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Because there are 100 cents in 1 dollar! When you have part of a dollar (like 0.18), you need to find how many cents that represents by multiplying: 0.18×100=18 0.18 \times 100 = 18 cents.

What if I accidentally divide instead of multiply?

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You'll get a much smaller number that doesn't make sense! For example, 0.18 ÷ 100 = 0.0018, which would mean less than 1 cent. Always remember: dollars to cents = multiply by 100.

How can I remember which direction to convert?

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Think about it logically: cents are smaller units than dollars, so you need more of them. This means the number should get bigger, which happens when you multiply!

Does this work for any dollar amount?

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Yes! Whether it's 0.05,0.05, 2.50, or 10.75, always multiply by 100 to get cents. For example: \( 2.50 \times 100 = 250 cents.

What if my calculator shows 18.0 instead of 18?

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That's perfectly fine! 18.0 and 18 are exactly the same value. The extra zero doesn't change the amount - you still have 18 cents.

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