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How to measure the length of a coil of rope with a 1 meter long ruler?
Fold it into more than one meter long sections. Count the sections and add them
Measure the length of an object with a ruler whose minimum division value is mm. If the measurement result is in meters, there will be a number after the decimal point______ Number of digits
To measure the length of an object with a ruler whose minimum division value is mm and record the data in meters is accurate to 3 digits after the decimal point. When reading, one digit is added to estimate the number. Therefore, there are 4 digits after the decimal point
A ruler is 2 decimeters long. It is necessary to measure a 2-meter-long pile with this ruler______ Times
2 meters = 20 decimeters, 20 △ 2 = 10 (Times), answer: need to measure 10 times. So the answer is: 10
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- 1. 45 minutes = () hours 47 square minutes = () square meters 3 hours = () days 132 seconds = () minutes 195kg = () tons 600 meters = () kilometers! 1
- 2. 1.09M = () mm 109decim = () m 86kg=（ 1.09M = () mm 109decim = () m 86kg = () kg
- 3. 23dm = () m 1350g = () kg 7450m = () km 9020kg = () t
- 4. In ancient times, who used different lengths of each part of their body as a unit of measurement
- 5. American unit of measurement Ask for a table of that kind, or help me to list the U.S. units of measurement, such as inch, feet, etc
- 6. How to say the unit of measurement in English? How to express the unit of measurement in English? Is it unit? For example, "unit: kilometer" is "XX: km"? Please give me some advice,
- 7. Monetary measurement is the only unit of accounting measurement It's a judgment question, thank you
- 8. Today, Qin's general weighs about 1.8 Jin per kilo Height (m) and weight (Jin)
- 9. The ratio of surface area, volume and volume Answer tonight, OK, plus 10 wealth
- 10. What is the unit of time___ ?
- 11. How much should be recorded when the length of an object measured in Decimeter is 4.5786m
- 12. Millimeter centimeter decimeter kilometer (kilometer) is the unit of object (), called () unit
- 13. The car runs from Nanjing to Shanghai 274 km away, with an average speed of 80 km an hour Find the functional relationship between the distance s (km) and the travel time t (H) of the car from Shanghai, write out the value range of the independent variable, and draw the image of the function
- 14. The railway from Beijing to Nanjing is about 1200 kilometers long. It takes 10 hours for the express train and 15 hours for the slow train. The two trains leave from both places at the same time and meet in a few hours
- 15. The railway between Shanghai and Nanjing is about 300 km long, and it takes a few hours after departure When can the EMU catch up with the ordinary express train? (PS: the EMU can travel 180 kilometers per hour; the Ordinary Express can travel 80 kilometers per hour)
- 16. 1 mm = () cm 1 cm = () decimeter 1 decimeter = () meter 1 meter = () kilometer 1 kilometer = () hectare
- 17. It's 65 kilometers per hour by car and 5 kilometers per hour by foot. It's 12 minutes from school to home by car. How long does it take to walk? It can't be solved by equations, and there are assumptions
- 18. The length unit of the Yangtze River, Yellow River, Pearl River and Huaihe River in China is kilometer
- 19. How many rivers are there over 1000 square kilometers in China More than 500 More than b1000 More than 600 More than d1800
- 20. Please check for me that the Yangtze River is longer than all other rivers in China