1 () = 10 () = 1000 () fill in the appropriate unit in the brackets 1、0.1（ ）= 10（ ）= 1000（ ） 2、0.01（ ）= 10（ ）= 10000（ ） If you fill in the appropriate name of the company in brackets, the formula is true Please answer the questions according to the scope of knowledge of grade 4 in primary school

1 () = 10 () = 1000 () fill in the appropriate unit in the brackets 1、0.1（ ）= 10（ ）= 1000（ ） 2、0.01（ ）= 10（ ）= 10000（ ） If you fill in the appropriate name of the company in brackets, the formula is true Please answer the questions according to the scope of knowledge of grade 4 in primary school

1. 0.1 (m) = 10 (decimeter) = 1000 (CM)
2. 0.01 (square meter) = 10 (square decimeter) = 10000 (square centimeter)

Simple calculation of 9 * 1.5 + 9.1 / 1.7-5 * 1.5 + 4.5 / 1.7

=1.5*（9-5）+（9.1+4.5）/1.7
=1.5*4+13.6/1.7
=6+8
=14

In the 100 meter race, Xiao Ming reaches the finish line, and he just runs 80 meters. He has to arrive at the same time. When he starts, Xiao Ming has to retreat a few meters
fast

25m
In the same time, Xiaoming ran 100m, while Xiaogang only ran 80m, so Xiaoming's speed is 1.25 times of Xiaogang's. to run 100m, Xiaoming needs to run 125m, so Xiaoming needs to step back 25m

Three continuous natural numbers, the middle one is a, the other two are () and ()

A-1 and a + 1

. 1.3.5.7.9.11.13.15.17.19.21.23.25.27.29.31.33.35 adding 9 groups equals 36.. how to add... Such as 1 + 3 + 5 + + 7 + thank you,

35＋1,33＋3,31＋5,29＋7,27＋9,25＋11,23＋13,21＋15,19＋17

Below is a rectangular sheet of iron 8 cm long and 4 cm wide. Can you cut it into five pieces and weld it into a rectangular container with a square bottom?
What's the area of this container? 2010

It is 8 cm long and 4 cm wide,
Cut it into five pieces: 4 * 4,4 * 1,4 * 1,4 * 1,4 * 1,4 * 1
It can be welded into a rectangular container with a square bottom
The area of this container is 8 * 4 = 32cm & sup2;
(volume = 4 * 4 * 1 = 16cm & sup3;)

Mr. Li takes 1440 yuan to buy tables and chairs. A table costs 60 yuan more than a chair. The price of 12 tables and 18 chairs is equal. How many tables can you buy if you buy all the tables? How many chairs can you buy if you buy all the chairs?

Hello
The price of a table is that of a chair
18 △ 12 = 1.5 times
Price of a chair:
60 (1.5-1) = 120 (yuan)
Price of a table:
120 + 60 = 180 yuan
If you buy tables, you can buy:
1440 △ 180 = 8 (sheets)
If you buy chairs, you can buy:
1440 △ 120 = 12 (PCs.)

In______ Fill in the appropriate fraction. (1) 17 cm=______ M (2) 159 M=______ Km (3) 3DM=______ Rice (4) 89g=______ Kilogram

17 cm = 17 × 1100 = 17100 m; 159 M = 159 × 11000 = 1591000 km; 3 decimeter = 3 × 110 = 310 m; 89 g = 89 × 11000 = 891000 kg; so the answer is: 17100, 1591000, 310, 891000

The number ratio of story books to science and technology books in the book corner of a class was 1:8. Later, students bought five story books, so the number ratio of story books to science and technology books was 1:4. How many books were there in the book corner?

Science and technology books: 5 △ 14-18, = 5 △ 18, = 40 (Books); story books: 40 × 18 = 5 (Books), total books: 40 + 5 = 45 (Books); answer: there were 45 books in the book corner

Please find out the rule and write the fifth number 1,3 / 4,9 / 4,27
The calculation process is required,

It's 1296, because 1 = 1 ^ 2, 3 / 4 = (1 × 1 / 2 times root 3) ＾ 2, 9 / 4 = (1 × 1 / 2 root 3 × root 3) ^ 2, 27 = (1 × 1 / 2 root 3 × root 3 × 2 root 3) ^ 21296 = (1 × 1 / 2 root 3 × root 3 × 2 root 3 × 4 root 3) ^ 2