Fill in the same number in the same formula, for example: 6710 = 771, 811 = 7510, 3210 = 321

5 3 0

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1. Fill in the appropriate number in the box so that the results of the two formulas are equal. 3x box - 3 = box X3 - 3 = box x box
2. Fill in the same number in the same formula. 30 - □ = 22 +
3. Find the number represented by "Kou" in the following formula (1) (Kou + 6) / 7-2.5 = 3.5 (2) (Kou X7) / 4 Find the number represented by "Kou" in the following formula (1) (mouth + 6) / 7-2.5 = 3.5 (2) (Port X7 port 1) / 4 = 5
4. Fill in the six numbers, 0.1.2.3.5.6, respectively, so that the formula holds. Each number can only be used once
5. Put the 10 numbers 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 in the following box, and do not repeat them. Box + box = box
6. Fill in ten numbers 0.1.2.3.4.5.6.7.8.9 in the box, and each number can only be used once. Box = box = box = box = box = box
7. Fill in 1 to 9 in the following box and use each number once to make the equation true. Port x = port x = 5568 The answer is 174x32 = 58x96 Want a correct, concise, professional way of thinking
8. Please fill 1,2,3,4,5,6,7,8,9 in the following box without repeating each other to make the equation hold: mouth * mouth = mouth;
9. Put the 8 numbers 1, 2, 3, 4, 5, 6, 7 and 8 into the port respectively. Port + port = port + port = port + port = port + port = port + port
10. 6 - (3 and 4 molecules 3 + 8 molecules 1 / 12.5%) / 0.625
11. Fill in 0, 1, 2, 3, 4, 5 in the box. Each number can only be used once______ -______ =______ -______ =______ -______ If it is an addition, how to fill in it______ +______ =______ +______ =______ +______ ．
12. 0.1.2.3.4.5.6.7.8.9 fill in the box (each number can only be used once) to make the three formulas hold (write at least two answers)
13. 0.5 1 / 3 0.25 0.2
14. It is known that: 10 () 3 = 28 8 () 7 = 4 3 / 4 () 1 / 4 = 2 find the law according to these formulas, 5 / 8 () x, X=
15. Find the rules and write the formula: 1 + 2,2 + 4,3 + 6,4 + 8,1 + 10,2 + 12,3 + 14,4 + 16,1 + 18. What's the formula 2001? Hurry, please, wait online for half an hour~~~~~~~~~·
16. The first formula is 1 / 1 × 3 = 1 / 2-1 / 6, the second formula is 1 / 2 × 4 = 1 / 4-1 / 8, and the third formula is 1 / 3 × 5 = 1 / 6-1 / 10
17. Find the rules and write the formula: 1 + 2,2 + 4,3 + 6,4 + 8,1 + 10,2 + 12,3 + 14,4 + 16,1 + 18?
18. 5 △ () = 7 / 8 × () = 35: () = 0.625 = 16 () No one can figure that out Will anyone!
19. 5:0.625, and 7 / 16:35 / 28
20. 1 = 5 2 = 25 3 = 125 4 = 625 5 =? Evaluation analysis It needs to be analyzed