In the morning, an aunt went to the vegetable market to buy vegetables. Before she went to the meat stall, she picked up a piece of meat, which was marked 15 yuan/jin. She did not bargain. The boss threw the meat on the electronic scale, input the quotation "30", and the quotation "19" appeared.
The aunt said, "Boss, help me to lose an extra 0 in the quotation column!" The boss was upset when he heard this, but he still entered the quotation "30.0", showing that the quotation was "18.4" yuan.
All the people present were shocked. The price of the electronic weighbridge had also been raised. We hurried to ask the aunt for advice. Suggest writing it down!
If I buy a fish, the boss says the price is 11 yuan/jin. When the boss weighs the fish on the electronic scale, Electronic weighbridge manufacturer 22 yuan will be entered in the unit price column. Since the electronic scale is calculated according to kg, that is, kg, it is required to enter "22". We all know this.. Here's the trick
Usually, there are 4 characters in this input column that can enter a fish of 11 yuan/jin. If he enters "22", the electronic weighbridge design will automatically display an integer quotation. Even if the real quotation is 8.1 yuan, the quotation of my fish will also be "9". This rounding has nothing to do with your math teacher who has not passed away. This is how the electronic weighbridge system is set up.
If "22.0" is entered in the unit price column, 1 digit after the decimal point will appear in the quotation column. So my fish became "8.4" yuan.
If "22.00" is entered in the unit price column, two decimal places will appear in the quotation column. My fish may become "8.33" yuan.
So in the future, I will buy fish, meat, fruit, cooked food, snacks... All I need to do is use this electronic scale, and the boss will press the unit price. It's OK to say, "Boss, help me press one more zero in the unit price". Don't care, it will be a lot of money after a long time!
