Fill in the same number in the same formula. 30 - □ = 22 +

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• 1. 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
• 2. Fill in the six numbers, 0.1.2.3.5.6, respectively, so that the formula holds. Each number can only be used once
• 3. 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
• 4. 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
• 5. 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
• 6. 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;
• 7. 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
• 8. 6 - (3 and 4 molecules 3 + 8 molecules 1 / 12.5%) / 0.625
• 9. How to calculate (1 / 4 × 6 / 1 + 6 / 1 × 8 / 1 + 8 / 1 × 10 / 1 + 10 / 1 × 12 / 1) × 2 easily?
• 10. What is 2 + 4 + 6 + 8 +. + 1 / 200 + 3 + 5 + 7 +. + 199
• 11. 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
• 12. Fill in the same number in the same formula, for example: 6710 = 771, 811 = 7510, 3210 = 321
• 13. 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______ +______ =______ +______ =______ +______ ．
• 14. 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)
• 15. 0.5 1 / 3 0.25 0.2
• 16. 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=
• 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. What's the formula 2001? Hurry, please, wait online for half an hour~~~~~~~~~·
• 18. 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
• 19. 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?
• 20. 5 △ () = 7 / 8 × () = 35: () = 0.625 = 16 () No one can figure that out Will anyone!