Pregunta
The following sum was answered by a grade 8 learner: \[ \begin{array}{l}5 \times 9+6 \\ \\ =\end{array} \] State if the answer is correct or incorrect. Give reasons. Also write the correct answer.
Ask by Brewer Higgins. in South Africa
Mar 12,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The answer is incorrect. The correct calculation is \( 5 \times 9 = 45 \) and \( 45 + 6 = 51 \).
Solución
To evaluate the expression \( 5 \times 9 + 6 \), we need to follow the order of operations, which states that multiplication should be performed before addition.
1. **Calculate the multiplication:**
\[
5 \times 9 = 45
\]
2. **Now, add 6 to the result:**
\[
45 + 6 = 51
\]
Thus, the correct answer to the expression \( 5 \times 9 + 6 \) is \( 51 \).
### Conclusion:
- If the grade 8 learner provided an answer other than \( 51 \), then their answer is incorrect.
- The correct answer is \( 51 \).
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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The Deep Dive
The answer provided by the grade 8 learner is likely incorrect if they performed the operations without adhering to the order of operations. According to the order of operations (PEMDAS/BODMAS), you should first multiply before adding. So, calculating it step-by-step, you first do \(5 \times 9 = 45\) and then add 6. Therefore, \(45 + 6 = 51\). The correct answer is 51.

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