0-9 number plus number equals one digit number minus number equals one digit number and the remaining number equals two digits. It cannot be repeated

3 + 6 = 9,8-7 = 1,4 × 5 = 20, all numbers are only used once

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1. Fill nine numbers 1-9 in the following to make the equation hold. (the numbers can't be repeated). □ ^ ^ ^ = □ × ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
2. Fill in 0.1.2.3.4.5.6.7.8.9 in the following () to make the equation true. (the number cannot be repeated) （）+（）=（）（）—（）=（ ) ( )x（）=（）（）
3. 9. Use the numbers 1, 2, 3, 4, 5, 6, 7 and 8 to fill in the box of the following equation without repetition, so that the equation holds 1＋□＋□=9＋□＋□=8＋□＋□=6＋□＋□
4. Please fill in the blanks of the following formula with the seven numbers of 0, 1, 2, 3, 4, 5 and 6 to make the equation hold
5. 123456789 fill in the box with nine numbers () = half * () = one third * () ()
6. Fill in 1.2.3.4.5.6.7.8.9 in the box
7. About "123456789 nine numbers fill in the box () = half * () = one third * ()" I want specific solutions. I know
8. Vertical and horizontal nine grid, 1 ~ 9, nine numbers filled in the grid, so that the horizontal, vertical, oblique addition is equal to 15, can not be repeated, I want to answer in detail! I only need the detailed answer, how to solve it ~ don't just give me the answer, I will search for the answer myself!
9. Fill the numbers 1 to 9 in the small boxes so that the sum of the three numbers on each line is equal to 15
10. Fill in the box below with 1-9 numbers, which can't be repeated. Division is equal to division = () division = 2
11. 1-9, 9 digits, make up 3 3-digit numbers, among which 2 3-digit numbers are subtracted, but the numbers cannot be repeated
12. 0-9, make up two four digit, subtract and multiply by a two digit, equal to 900, each number can not be repeated
13. Two 10's and two 4's are equal to 24. Add, subtract, multiply and divide randomly. They should be equal to 24. The numbers can't be repeated
14. How many channels are there for the 10 numbers of 0-9 to be subtracted or added equal to 24? How many channels are there for the 10 numbers of 8 to be subtracted or added repeatedly For example, 9 + 8 + 7 + 0 + 0 + 0 + 0 + 0 + 0 = 24
15. 2, - 4,8, - 13, form a test, the result is equal to 24, add, subtract, multiply, divide, or power, the number can not be repeated,
16. 7.8.6.2 how can four numbers be equal to 24? (numbers can't be repeated)
17. 6.8.5.3 how to be equal to 24 numbers cannot be repeated All answers are at the top!
18. What is the number from 1 to 9? What is the number plus or minus? What is the number multiplied by what is the number divided by what is the number of 2? It can't be repeated
19. Fill 1, 2, 3, 4, 5, 6, 7, 8 and 9 in the multiplication equation where the number of four digits is equal to the number of four digits. Each number is used once without repetition,
20. From 1 to 9, nine digits, three digits minus three digits equals three digits, the mantissa is 1, nine digits can't be repeated,