Question:
What will be the correct mathematical signs that can be inserted in the following?
\[
8 \ \_ \ 6 \ \_ \ 2 \ \_ \ 4 \ \_ \ 8 \;=\; 28
\]
What will be the correct mathematical signs that can be inserted in the following?
\[
8 \ \_ \ 6 \ \_ \ 2 \ \_ \ 4 \ \_ \ 8 \;=\; 28
\]
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Always apply operator precedence: first \(\times,\div\) left to right, then \(+,-\). Testing choices quickly often reveals the match.
Updated On: Aug 18, 2026
- \( - \ \times \ + \ \div \)
- \( \div \ + \ \times \ - \)
- \( + \ \div \ - \ \times \)
- \( \times \ \div \ - \ + \)
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The Correct Option is D
Approach Solution - 1
Step 1: Substitute option (d) and apply BODMAS.
\[ 8 \times 6 \div 2 - 4 + 8 \] First multiplication: \(8\times 6=48\). Then division: \(48\div 2=24\).
Now addition/subtraction left to right: \(24-4+8=20+8=\boxed{28}\).
\[ 8 \times 6 \div 2 - 4 + 8 \] First multiplication: \(8\times 6=48\). Then division: \(48\div 2=24\).
Now addition/subtraction left to right: \(24-4+8=20+8=\boxed{28}\).
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Approach Solution -2
Substitute all four sign combinations into \(8\ \_\ 6\ \_\ 2\ \_\ 4\ \_\ 8\) and evaluate each with BODMAS to see which equals \(28\).
- Option (a) \(-,\times,+,\div\): \(8-6\times2+4\div8=8-12+0.5=-3.5\), not \(28\).
- Option (b) \(\div,+,\times,-\): \(8\div6+2\times4-8\approx1.33+8-8=1.33\), not \(28\).
- Option (c) \(+,\div,-,\times\): \(8+6\div2-4\times8=8+3-32=-21\), not \(28\).
- Option (d) \(\times,\div,-,+\): \(8\times6\div2-4+8=24-4+8=28\), matching exactly.
Only option (d) evaluates to \(28\) under BODMAS.
the correct answer is \(\times\ \div\ -\ +\).
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