Solving 100 practical problems of one variable linear equation in Grade 6

Are you a teacher? 1. Use round steel with a diameter of 4cm to cast three cylindrical parts with a diameter of 2cm and a height of 16cm. How long is the round steel to be cut? 2. There is a square copper block with an edge length of 4cm. After melting it, cast it into a long square copper block with a width of 2cm and a width of 4cm. What is the height of the copper block

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1. Applied problems of one variable linear equation in Grade 6 of Mathematics A two digit number whose number on the tenth digit is 5 times larger than that on the individual digit. The sum of the number on the tenth digit and the number on the individual digit is equal to 1 / 8 of the number to find the two digit number
2. If the results of the following two questions are non-zero natural numbers, find the minimum value of R and S (1) r divided by 5 times 1 / 3 (2) 7 / 6 times s divided by 5 / 3
3. How much time does it take sb. To do sth
4. (- 7 and one eighth) + (- 3.37) + 6 and one fourth + 2.125 + (- 0.25) + (- 2.63)
5. What's the difference between 7 / 15 divided by 2 / 3 divided by 3 / 4 and the starting number? Why
6. An old man said, "add 17 to my age and divide it by 4. Subtract 15 and multiply it by 10. It happens to be 100 years old.",
7. -19 and 17 / 18 * (- 36) {- 7 / 12 + 3 / 4-5 / 6 - (- 5 / 18)} * (- 36)
8. What is the quotient of a number 37.5% less than 32 divided by the reciprocal of 1.5
9. 7 out of 8 + 5 out of 12 + 9 out of 8=
10. The number 7.2 less than 9.5 times x is () the quotient of X divided by 9 and the sum of 8.4（ The sum of the quotient of X divided by 9 and 8.4 is ()
11. The calculation of one variable linear equation in Grade 6
12. A one-dimensional equation of the application of the problem (pursuit class). Please write the process, urgent! A and B ride their bikes at the speed of 11km / h and 15km / h respectively along the same route from west to East. A passes by a at 11am, and B passes by B at 1pm, 2km west of A. how many kilometers away from a can b catch up with a?
13. Grade 6, the equation of one variable is not practical problem, pure calculation problem No inequality, I just can't move terms, so there should be unknowns on both sides of the equation. If it's convenient, teach me again. It's time to take an exam. If it's fast, add points A few more, everybody. What's the use of sending only one
14. Given 2aX = ax + 6, when a is an integer, the solution of the equation is a positive integer
15. There are 95 tons of grain in warehouse A and warehouse B. now 23% of it is transported from warehouse A and 40% from warehouse B. then the remaining grain in warehouse B is twice that in warehouse A. how many tons of grain were there in warehouse A and warehouse B?
16. Draw a rectangle 3cm long and 2cm wide. Enlarge the rectangle by 2:1 and draw it. Think about it: what is the area ratio of the two rectangles?
17. The fruit shop brought in a batch of oranges, which accounted for 40% of the total sales on the first day and 140 kg on the second day. The weight ratio of the remaining oranges to the sales was 1:3. How many kg do these oranges weigh?
18. Sixth grade first volume than the application of the problem and (answer) urgent
19. If 30 people are sent from team a to team B, the ratio between team a and team B will be 3:2. How many people are there in each team?
20. Mathematics of grade six in primary school A, B and C are in the 100m race. When a reaches the finish line, B is still 20 meters away, and C is 25 meters away from the finish line. Q: how many meters away is C when B reaches the finish line?