How to choose a calculator

[Office Partner Information Center] Calculator is one of the indispensable electronic devices for every family and company. It can bring very convenient service to everyone's life and work. It is small in size, but the credit is not small. So how do you buy it? Let's take a look at the small series below!

[Calculator purchase] How to buy calculator calculator purchase tips

1. When purchasing a calculator, you should first choose a good brand. It is recommended that you use the two brands, CIGNA or Casio, because their quality and performance are relatively stable. However, there are many counterfeit products on the market. You should buy them at a reputable stationery store when you purchase them, so as to avoid being deceived.

2. Review the instructions carefully before opening the calculator package.

3. It is recommended that you do not purchase a calculator with a button battery.

4. At any time, you only need to enter â€œ8Ã·9â€ and press â€œ=â€. If your calculator is twelve-digit, the 12-digit â€œ8â€ will appear on the display screen if you The calculator is 8 digits, then the 8-digit "8" word will appear on the display screen. Next, you should check carefully whether the writing of each "8" word is clear and there is a missing part. In both cases, your calculator is normal.

5. When the power of the calculator is dual-power ordinary battery + solar receiver board, you should first remove the ordinary battery and check whether the solar receiver board has digital display. When the display is not clear, please swing it in the sub-shooting area of â€‹â€‹the light. . When the screen displays 0 words, then it can be proved that the solar receiver board is intact.

Pick the calculator four points

Look at speed

The calculator must calculate the speed. Also ensure that the number can not be wrong.

2. Flexible buttons

The calculator must be drawn to the number, otherwise it is very troublesome.

3. The screen is clear and there are no traces

The calculator must have a clear screen with no traces. Here's a way: 1. Press the number 8 continuously to check if the number is complete. 2. Check if the decimal point can be displayed (everyone must check).

4. Whether the cover is damaged or not

If it is damaged, don't buy it. It is very likely that the electronic parts will fall and damage the calculator.

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