Question:
Two signs in the equations have been interchanged, find out the two signs to make the equation correct.
\[
3 \, - \, 5 \, + \, 8 \, + \, 2 \, - \, 10 = 13
\]
Two signs in the equations have been interchanged, find out the two signs to make the equation correct.
\[
3 \, - \, 5 \, + \, 8 \, + \, 2 \, - \, 10 = 13
\]
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When solving sign-interchange problems, carefully check each sign and test by substituting it into the equation.
Updated On: Mar 25, 2026
- \( + \) and \( - \)
- \( \times \) and \( \div \)
- \( = \) and \( - \)
- \( + \) and \( \div \)
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The Correct Option is D
Solution and Explanation
Step 1: Analyze the equation.
Substitute the signs \( + \) and \( \div \) into the equation to make it correct.
Step 2: Conclusion.
After interchanging the signs, the equation becomes correct when \( + \) and \( \div \) are interchanged. Final Answer: \[ \boxed{+ \text{ and } \div} \]
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