Fill in the operation symbol between 9 2, and the result is 1000

2222÷2-222÷2=1000

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1. Fill in the number in ×, and the operation symbol in × (□ ×) × 19 = 8 × (25 × 9)
2. (1.992) * (1.992) * (19.922) = 1992 with operation symbol filled in the middle
3. 5 = {1 -- 10} add symbols between them to make the answers get 1,2,3,4,5,6,7,8,9,10! （5＋5）÷5－5÷5＝1 （5＋5）÷5＋5－5＝2 （5＋5）÷5＋5÷5＝3 5＋5－5÷5－5＝4 5×5－5×5＋5＝5 5＋5÷5－5＋5＝6 （5÷5＋5）＋5÷5＝7 （5＋5＋5）÷5＋5＝8 （5×5－5）÷5＋5＝9 （5×5＋5×5）÷5＝10 5 x5 x5 x(5 -5)=0 5 ÷5 +5 x(5 -5)=1 (5+ 5)÷ 5 +5 -5=2 5÷5+( 5+5)÷5=3 (5 +5+ 5+ 5)÷ 5=4 5 x5÷ 5+ 5- 5=5
4. 24 points: [the given four numbers, the use of "+. -. X. /" and multiplication square operation symbols and brackets, you can disorder the order, the calculated number is equal to 24] 《 4 5 7 9 》《 3 7 8 8 》《 2 2 8 8 》《 3 3 7 7 》《 1 3 5 7 》《2 3 6 9》
5. Fill in the appropriate operation symbols and brackets on the horizontal line to calculate "24 points" - 4_____ 6 _____ （-3) _____ 2=24
6. What symbol does 9999 use to calculate 24 points
7. How to calculate 24 o'clock from 3, 7, 1 and 8? I solved (7-3-1) * 8
8. How to make 2,7,8,11 into a formula by using operation symbols and adding brackets to make the result equal to 24?
9. 1. Add operation symbol to make 3 = 24 The order cannot be reversed
10. 5 = {1 -- 10} add symbols between them to make the answers get 1,2,3,4,5,6,7,8,9,10! Move your head!
11. What are the operation symbols to be filled in when the last four equals nine
12. How to fill in the operation symbol for 4 = 5
13. 4 () 4 () 4 = 4
14. 4 () 4 () 4 = 7 () filled with operation symbols Add another 4 () 4 () 4 = 2
15. Fill in the middle of 5 = 11 with appropriate operation symbol, which can be in brackets
16. 11 8, fill in the operation symbol, how can we get 2005?
17. Add operation symbols or brackets between the following four numbers to make the result equal to 24. Use 9, 3, 7, 2,
18. How to add sign equal to 24 for 3, - 5,7, - 13
19. 3 3 7 7 fill in the operation symbol, so that the final answer is equal to 24 Can use add, subtract, multiply, divide, bracket, bracket, brace
20. Fill in appropriate operation symbols between 3, 3, 7 and 7 to make the result equal to 24