Prakash added the prices for the mouse, the keyboard and the monitor on his calculator.

The answer he got was 342.

His answer was incorrect.

To determine the mistake Prakash might have made, we can approach this problem by considering potential errors in addition or data entry. However, without the exact prices for each item (mouse, keyboard, and monitor), we can only speculate on the nature of his error.

Here are some common mistakes that could lead to an incorrect total:

1. **Data Entry Error**: Prakash may have entered one or more of the prices incorrectly into the calculator.
2. **Addition Mistake**: There might have been an error in the addition process itself.
3. **Omission**: He might have forgotten to add one of the items' prices.
4. **Repeated Addition**: He could have added the price of one item twice.

To find the correct total, Prakash would need to double-check the prices and redo the calculation.

Would you like to explore specific types of errors in detail, or do you have the actual prices for each item? This would help in diagnosing the mistake more accurately.

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Here are 5 related questions:

1. What are the actual prices of the mouse, keyboard, and monitor?
2. Did Prakash use any discounts or taxes that could have affected the total?
3. Was there a specific price that Prakash consistently miscalculated in past purchases?
4. Could Prakash have pressed the wrong buttons on the calculator?
5. Did Prakash possibly add the same item more than once?

**Tip:** When using a calculator, always double-check each number before pressing "equals" to ensure accuracy.

Prakash added the prices for the mouse, the keyboard, and the monitor on his calculator. The answer he got was 342. His answer was incorrect.

Discover how to identify common mistakes in simple addition by analyzing an error made while adding the prices of a mouse, keyboard, and monitor. This problem focuses on arithmetic concepts and error analysis, making it suitable for students in Grades 4-6.

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