The sixth grade math thesis is about 500 words. There is an urgent need to write mathematics in life!

Save electricity and protect the environment

After moving to a new house, my mother said, "It's really expensive at home. Water, electricity, gas, property fees and elevator fees cost a lot of money every month. To save a little, let's open the time-sharing meter first! "

Half a year later, the electricity bill of the power supply company came. I asked my mother, "Does your time-sharing meter really save money?" Mother said, "Go and study for yourself." Open the bill and see, from October to June in 2009/kloc-0, our household electricity consumption was 2724 degrees, including 2060 degrees in peak hours, 664 degrees in valley hours and 75: 25 in peak and valley hours. How much money have you saved? I took out my pen and calculated that if there was no time-sharing table, our family would have to pay 1439 yuan. Only need to pay 1388 yuan after opening. "Mom, we saved 5 1 yuan." I shouted at my mother who was cooking in the kitchen.

Mother poked her head out of the kitchen and said, "Time-sharing meters do save money, but we have to find other ways to save electricity." You and dad have ideas, too "Dad said," The air conditioner can adjust the temperature to 26 degrees, and the doors and windows of the room are tightly closed, which can save a lot of electricity. "My mother nodded and said," I remember a children's song,' high-end turn low, turn slowly and save electricity. The wind blows from a cold place to a hot place, and the steaming will not disappear. ""I said, "mom said it very well. I never save electricity. I will turn it off in time after watching TV. I must remember to turn off the lights after going to the toilet. Just then, the washing machine at home beeped to remind me that it had been washed. My mind flashed: "The washing machine can be washed after 9 pm!" " "Mom smiled and nodded:" What a good idea! "

I said happily to my mother, "Save the electricity bill and we can buy other good things." Mom said: "Saving electricity not only saves money for families, but more importantly, saving one degree of electricity is equivalent to saving 4 liters of water, saving 0.4 kg of coal and reducing 0.997 kg of carbon dioxide emissions!" I suddenly understood that saving electricity means saving energy and protecting the earth where we live. I must save electricity.