Solve Decimal Division: 0.3 ÷ 10 Using Place Value

Decimal Division with Powers of Ten

0.3:10= 0.3:10=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:04 According to the number of zeros, move the decimal point
00:08 Move the decimal point according to the number of zeros
00:16 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

0.3:10= 0.3:10=

2

Step-by-step solution

To solve this problem, we need to divide 0.3 0.3 by 10 10 . We can achieve this by using the following steps:

  • Step 1: Understand that dividing by 10 10 means moving the decimal point one place to the left.
  • Step 2: Currently, the number is 0.3 0.3 . To divide by 10 10 , shift the decimal one place left to obtain the new value.
  • Step 3: After moving the decimal point, the new value becomes 0.03 0.03 .

This simple operation demonstrates that when dividing by powers of ten, the decimal point moves to the left by as many places as there are zeros in the power (one zero here, for dividing by ten).

Therefore, the solution to the problem is 0.03 \text{0}.03 .

3

Final Answer

0.03 \text{0}.03

Key Points to Remember

Essential concepts to master this topic
  • Division Rule: Dividing by 10 moves decimal point one place left
  • Technique: From 0.3 ÷ 10, shift decimal left to get 0.03
  • Check: Multiply back: 0.03 × 10 = 0.3 confirms our answer ✓

Common Mistakes

Avoid these frequent errors
  • Moving decimal point the wrong direction
    Don't move the decimal point right when dividing by 10 = getting 3.0 instead of 0.03! Division by 10 makes numbers smaller, not larger. Always move decimal left when dividing by powers of ten.

Practice Quiz

Test your knowledge with interactive questions

\( \text{0}.07\times10= \)

FAQ

Everything you need to know about this question

Why does the decimal point move left when dividing by 10?

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Dividing by 10 makes a number ten times smaller. Moving the decimal point left reduces the place value of each digit, making the number smaller. Think of it as shrinking the number!

What if I'm dividing by 100 or 1000?

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Move the decimal point one place left for each zero! For 100 (two zeros), move two places left. For 1000 (three zeros), move three places left.

What if I don't have enough digits to move the decimal?

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Add zeros as placeholders! For example, if you need to move 0.5 two places left, think of it as 0.50, then move to get 0.005.

How is this different from multiplying by 10?

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Multiplying by 10 moves the decimal right (makes numbers bigger), while dividing by 10 moves it left (makes numbers smaller). They're opposite operations!

Can I use long division instead?

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You could, but moving the decimal point is much faster! Long division with decimals takes many steps, while the decimal-moving method gives you the answer instantly.

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