How much is grade 5? It seems to hurt people, but I still can't guess,

Dizzy, damage who 5=1.

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1. 1 = 5 2 = 25 3 = 125 4 = 625 5 =? Evaluation analysis It needs to be analyzed
2. 5:0.625, and 7 / 16:35 / 28
3. 5 △ () = 7 / 8 × () = 35: () = 0.625 = 16 () No one can figure that out Will anyone!
4. 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?
5. 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
6. 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~~~~~~~~~·
7. 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=
8. 0.5 1 / 3 0.25 0.2
9. 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)
10. 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______ +______ =______ +______ =______ +______ ．
11. If 1 = 5, 2 = 25, 3 = 125, 4 = 625, then 5 =?
12. If 1 = 5,2 = 25,3 = 125,4 = 625,5=
13. If 1 = 5, 2 = 25, 3 = 125, 4 = 625, what is 5 equal to?
14. How about 0.625 * 5.8 + 5 / 8 * 3.2 + 5 / 8
15. 8 and 4 / 5 △ [87 + 0.625 × (2 and 3 / 4-1.15)] can be simple
16. 1 and 1 / 3 * (- 4 / 9) * [(- 2.5) + (- 25 / 3)] And (- 3) ^ 2 (3 / 2) ^ 2 * 2 / 9 + 6 | - 2 / 3 | ^ 2
17. According to the law of the first three formulas, the last formula is supplemented completely. 8 ★ 2 = 8 + 9 = 17 & nbsp; & nbsp; & nbsp; & nbsp; 5} 3 = 5 + 6 + 7 = 18 & nbsp; & nbsp; & nbsp; & nbsp; 4} 6 = 4 + 5 + 6 + 7 + 8 + 9 = 3911} 4=______ =______ ．
18. What is 3-2.15 of 9 and 8 + 0.625-4 and 17 of 20
19. 32+54+98+1716+… +257256．
20. How much is 8 out of 15 minus 1 out of 13?