"How big is 100 million" PPT courseware for understanding large numbers

It takes about 3 years to understand the PPT courseware of "How Big is 100 Million" and count 100 million numbers non-stop. People have to eat and sleep. If we count 8 hours a day, it will take ( ) years to count 100 million. That is to say, if you are 9 years old this year, start counting from now until you are ( ) years old to finish counting 100 million exercise books. The height of the Shanghai Oriental Pearl TV Tower is 468 meters, and the height of 100 million sheets of paper stacked will be Is it tall? If so, how many times is the height of the Shanghai Oriental Pearl TV Tower if 100 million sheets of paper are stacked? Each floor of the building is about 3 meters, and the height of 110 million sheets of paper stacked is equivalent to a 3,333-story building, which is equivalent to 21 Shanghai Oriental Pearl TV Towers, and is higher than Mount Everest (8,848 meters). Information 1. There is a serious water shortage in Asia, and the number of people who lack drinking water that meets hygienic standards is about 800 million. About 2 billion people do not have access to sanitation due to lack of water. In 20 years, the world's water-scarce population may reach 3 billion. 2. One hundred million children holding hands can circle the earth's equator three and a half times. (Earth's equator is 40000000 meters) 3. If a person can live to be 80 years old, calculated in billions, the time spent by him is only more than 2.5 billion seconds. ... ... 12. It takes about 3 years to count 100 million numbers non-stop. People have to eat and sleep, and if they count 8 hours a day to count 100 million, it will take 9 years. That is to say, if you are 9 years old this year, start counting from now, and you will not be able to count 100 million exercise books until you are 18 years old. This courseware gives a comprehensive introduction to the multiplication formula of 6 through small games and exercises, which improves students' interest in learning and helps students better understand and remember the knowledge points of multiplication in the table. It is a good classroom teaching courseware. Keywords: courseware for understanding large numbers, how big is 100 million, Xinrenjiao version fourth grade mathematics PPT courseware, fourth grade mathematics slide courseware download, understanding of large numbers PPT courseware download, how big is 100 million PPT courseware, .ppt format For more information on the PPT courseware of "Understanding How Big is a Hundred Million", please click the ppt label of "How Big is a Hundred Million" ppt. "How big is 100 million" counting PPT courseware: "How big is 100 million" PPT courseware 9000000060=1500000 (minutes) 1500000 60=25000 (hours) 25000 241042 (days) 10423652.9 (days) ... ... Activity 3: (1) There are about 1.3 billion people in our country, if each person saves one grain of rice every day..