Solve the Division Equation: Finding the Number in ?÷70=1

Division Equations with Equal Results

?:70=1 ?:70=1

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Step-by-step video solution

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00:00 Find the unknown
00:03 Any number divided by itself always equals 1
00:07 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

?:70=1 ?:70=1

2

Step-by-step solution

To solve this problem, we'll apply the properties of division:

  • Step 1: Start with the given equation:
    x:70=1 x:70=1 .
  • Step 2: Recognize that in order to achieve the result of 1 from a division, the number being divided must be equal to the divisor.
  • Step 3: Use the property of division, which states that dividing any number by itself results in 1.
    Hence, if x÷70=1 x \div 70 = 1 , then x=70 x = 70 .

Therefore, the solution to the equation is 70, meaning the missing number in the equation ?:70=1 ?:70=1 is x=70 x = 70 .

3

Final Answer

70

Key Points to Remember

Essential concepts to master this topic
  • Property: Any number divided by itself always equals 1
  • Method: If x ÷ 70 = 1, then x = 70
  • Check: Substitute back: 70 ÷ 70 = 1 ✓

Common Mistakes

Avoid these frequent errors
  • Thinking the answer is 1 because it appears in the equation
    Don't assume the missing number is 1 just because 1 appears in the result = wrong answer! The 1 is the quotient (result), not the dividend (number being divided). Always remember that dividend ÷ divisor = quotient, so you need dividend = quotient × divisor.

Practice Quiz

Test your knowledge with interactive questions

\( 2+0= \)

FAQ

Everything you need to know about this question

Why isn't the answer 1 since I see 1 in the equation?

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The 1 is the result of the division, not the number being divided! Think of it like this: What number divided by 70 gives me 1? That number must be 70.

How do I remember which number goes where in division?

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Remember: dividend ÷ divisor = quotient. The dividend is what you're dividing up, the divisor is what you're dividing by, and the quotient is your answer.

What if the divisor was different, like 50?

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Same rule applies! If ?÷50=1 ? ÷ 50 = 1 , then the answer would be 50. Any number divided by itself equals 1.

Is there a quick way to solve these types of problems?

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Yes! When you see ?÷n=1 ? ÷ n = 1 , the answer is always n. This is because only when the dividend equals the divisor do you get a quotient of 1.

How can I check my answer?

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Simply substitute your answer back into the original equation. If you get 70 ÷ 70, does that equal 1? Yes! So 70 is correct.

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