Solve for the Missing Number: Finding X Where X÷100 = 0.0244

Division Equations with Decimal Results

?:100=0.0244 ?:100=0.0244

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find the unknown
00:04 Multiply by the factor to find the unknown
00:11 Move the decimal point according to the number of zeros, and find the unknown
00:17 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

?:100=0.0244 ?:100=0.0244

2

Step-by-step solution

To solve this problem, we need to find the value of x x in the equation:

x100=0.0244\frac{x}{100} = 0.0244

Let's follow these steps:

  • Step 1: Recognize that x100 \frac{x}{100} is equivalent to dividing x x by 100.

  • Step 2: To isolate x x , we need to perform the inverse operation of dividing by 100, which is multiplying by 100.

  • Step 3: Multiply both sides of the equation by 100.
    x100×100=0.0244×100 \frac{x}{100} \times 100 = 0.0244 \times 100

  • Step 4: Simplify the left-hand side to just x x , and calculate the right-hand side:
    x=2.44 x = 2.44

Thus, the value of x x that satisfies the equation is x=2.44 x = 2.44 .

Accordingly, the correct answer is the choice '2.44 2.44 '.

3

Final Answer

2.44 2.44

Key Points to Remember

Essential concepts to master this topic
  • Rule: To solve x÷100 = 0.0244, multiply both sides by 100
  • Technique: Multiply 0.0244 × 100 = 2.44 to isolate x
  • Check: Verify that 2.44 ÷ 100 equals 0.0244 ✓

Common Mistakes

Avoid these frequent errors
  • Dividing by 100 instead of multiplying
    Don't divide 0.0244 by 100 = 0.000244! This makes the equation worse instead of solving it. Always use the inverse operation: if dividing by 100 caused the problem, multiply by 100 to fix it.

Practice Quiz

Test your knowledge with interactive questions

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

FAQ

Everything you need to know about this question

Why do I multiply by 100 instead of dividing?

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Because we need to undo the division by 100! When x is divided by 100, the opposite (inverse) operation is to multiply by 100. This cancels out the division and leaves x alone.

How do I multiply decimals by 100 quickly?

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Move the decimal point two places to the right! For 0.0244 × 100, move the decimal: 0.0244 → 02.44 → 2.44. Each zero in 100 moves the decimal one place right.

What if I get confused about which operation to use?

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Think: "What was done to x?" If x was divided by something, then multiply to undo it. If x was multiplied by something, then divide to undo it. Always do the opposite operation!

Can I check my answer without a calculator?

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Yes! Think of 2.44 ÷ 100 as moving the decimal point two places left: 2.44 → 0.244 → 0.0244. If this matches the original decimal, you're correct!

Why are the other answer choices wrong?

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24.4 would mean 24.4÷100=0.244 24.4 ÷ 100 = 0.244 (too big). 244 gives 244÷100=2.44 244 ÷ 100 = 2.44 (way too big). 0.244 gives 0.244÷100=0.00244 0.244 ÷ 100 = 0.00244 (too small).

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