He's back! How simple:1233+10 =1243! Look, it worked! 2. Where did you use 0 in primary school? Tell me about your understanding of 0. Answer: 0 just doesn't exist! If you have five apples, eat five and have none! 5-5 = 0.3. Explain how big 10000 and 10000 are from two different angles! 10000m = 100000dm = 1000000cm = 100000000mm 10000000m square = = 100000000dm square = 100000000。 I'm exhausted. Our house is rotten! 4. Explain the meaning of 3/4 as much as possible. A: You have a big cake divided into 4 portions, and you ate 3 portions, which is 3/4 of the cake. 6. What is the propulsion rate between adjacent counting units of integers and decimals? Can you give an example? Answer: 10, 1 angle =0. 1 yuan =0.0 1 hundred =0.00 1 thousand.

7. In 2004, the total water consumption in China was 554.8 billion cubic meters, of which domestic water accounted for 1 1.7%, industrial water for 22.2%, agricultural water for 64.6% and ecological water for 1.5%. Compared with 2003, the national total water consumption increased by 227 cubic meters, the proportion of domestic and industrial water gradually decreased, and the proportion of agricultural water gradually increased.

What have you learned from the above information? Can you explain the specific meaning of these data? What are your experiences and feelings?

8. Find some fractions, decimals and percentages from the newspaper and tell me what these numbers mean.

9. For example, how long is 1 and how heavy is 1. 1 hour = 60min = 3600s 1 kg =2 kg = 1000 g.

10, what other units do you know about time, RMB and quality, such as? The time is 0: 00 RMB 1 angle =0. 1 yuan =0.0 1 hundred =0.00 1 thousand, and the mass is grams, kilograms and tons.

1 1. What can 1 do in daily life? Write down your feelings.