Mr. Pen Standard Function Calculator CALC04M136
Rating
Product Overview
The Mr. Pen Standard Function Calculator is designed for various settings, including business, office, home, and school. It features a sturdy plastic body and a large LCD screen for easy reading. The calculator has responsive buttons for smooth calculations and utilizes both solar and battery power for continuous operation. It is suitable for basic budgeting, personal finance, and quick calculations. The calculator displays up to 12 digits and includes a backspace key for error correction. However, some users have reported that the keys require careful pressing to register input.
Product Images
Product Specifications
Size & Weight
Features
A function that automatically calculates the tax amount and total price by simply entering the pre-tax price and tax rate. Useful for quick calculations when shopping or managing household finances. Simplifies calculating consumption tax when comparing prices.
This calculator does not include a dedicated tax calculation function. Users will need to manually calculate tax amounts using the basic arithmetic functions. This may require additional steps for quick calculations when shopping or managing finances.
A function to store numerical values and reuse them in subsequent calculations. It stores intermediate calculation results or frequently used numbers. Simplifies complex calculations that involve reusing the same numbers repeatedly.
Features a memory function for storing and recalling numerical values, making it easier to perform multi-step calculations and reuse frequently used numbers. This simplifies complex calculations that involve reusing the same numbers repeatedly.
A function to calculate the square root of a number. Useful for calculations in DIY projects or schoolwork where square roots are required. Eliminates the need to manually calculate square roots or use external tools.
It does not have a square root calculation function. Users needing to calculate square roots will need to use external tools or manual methods. This limits its utility for certain types of mathematical problems.
A function to easily calculate percentages such as discounts or profit margins. Useful when shopping or analyzing sales data. Avoids the need for complex manual calculations.
Includes a percentage calculation function, which simplifies calculating discounts, profit margins, and other percentage-related tasks, making it useful for shopping and data analysis. This avoids the need for complex manual calculations.
A function to quickly switch the sign of a number from positive to negative or vice versa. Useful for calculations involving debits and credits or temperature changes. Simplifies correcting entry errors or performing calculations with both positive and negative numbers.
The sign change function allows users to quickly switch the sign of a number from positive to negative or vice versa, simplifying calculations involving debits, credits, and temperature changes. This simplifies correcting entry errors or performing calculations with both positive and negative numbers.
A function to specify the number of decimal places displayed in the calculation result. It allows to round off results or display up to a specified number of decimal places. Useful when you want to avoid displaying unnecessary digits.
Does not offer a decimal place setting function. The calculator displays results with a fixed number of decimal places, which may not be suitable for all types of calculations where specific precision is required.
SHOPSTAFF Rating Score
This calculator is suitable for basic calculations and is priced affordably. However, it lacks advanced functions and may not be durable for heavy use. The build quality is basic, and the keys may be unreliable for some users.
Brand & Manufacturer Details
Key Highlights
- Affordable price
- Suitable for basic calculations
- Compact size
Considerations
- Avoid dropping the calculator
- Keep away from moisture
- Keys may require careful pressing
Recommended For
- Students
- Home users
- Anyone needing basic calculations
Not Recommended For
- Accountants
- Engineers
- Users requiring advanced functions
Suitable For
- School
- Home
- Basic office tasks
Not Suitable For
- Complex engineering calculations
- Advanced financial analysis
- Scientific research
Frequently Asked Questions (FAQ)
Q.I need a simple calculator for basic math at home. Is this Mr. Pen calculator a good choice?
Q.How durable is this calculator? I worry about it breaking easily.
Q.I'm concerned about the battery life. How long does the battery last, and is it easy to replace?
Q.I sometimes have trouble with small buttons. Are the buttons on this calculator easy to press and accurate?
Q.I need a calculator for an exam. Is this calculator suitable for test-taking?
SHOPSTAFF Rating Ranking
Pocket-sized, durable calculator with a clear SuperView display for easy calculations at home, school, or office.
| Digit Displayed | 8 digits | Power Source | Battery |
| Display Type | LCD | Key Type | Rubber |
| Dimensions | 121.1x78.7x2.5 mm | Weight | 81.6 g |
| Memory Function | Yes | Tax Calculation | No |
| Percentage Calculation | No |
Mechanical switch calculator with big buttons, large LCD display, and ergonomic design. Ideal for students and teachers.
| Digit Displayed | 12 digits | Power Source | Battery |
| Display Type | LCD | Key Type | ABS |
| Dimensions | 4.4 x 6.3 x 0.04 inches | Weight | 5.3 ounces |
| Memory Function | No | Tax Calculation | No |
| Percentage Calculation | Yes |
Standard desktop calculator with 12-digit LCD, sensitive buttons, and dual power (solar/battery) for office, home, or school.
| Digit Displayed | 12 digits | Power Source | Battery Powered, Solar Powered |
| Display Type | LCD | Key Type | ABS material durable plastic |
| Dimensions | - mm | Weight | - g |
| Memory Function | Yes | Tax Calculation | No |
| Percentage Calculation | Yes |
Deli Standard Function Basic Calculator with 12-digit LCD, dual power, and comfortable silicone buttons. Stylish and practical.
| Digit Displayed | 12 digits | Power Source | Battery Powered & Solar Powered |
| Display Type | LCD | Key Type | Silicone |
| Dimensions | - mm | Weight | - g |
| Memory Function | - | Tax Calculation | - |
| Percentage Calculation | - |
A compact and lightweight Casio calculator with an 8-digit display, solar and battery power, and basic functions.
| Digit Displayed | 8 digits | Power Source | Battery Powered, Solar Powered |
| Display Type | LCD | Key Type | - |
| Dimensions | - mm | Weight | - g |
| Memory Function | Yes | Tax Calculation | - |
| Percentage Calculation | Percent |
