8 4 3 = 24 add sign and bracket to form formula

8 ×4÷ 4 ×3 =24

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1. Please add appropriate operation symbols to make the operation result 24. - 4,3,8,1
2. Finding the general formula of 1,2,3,5,7,10,13,17,21 Find 1,3,5,10,16,24,37,53 Find 1,3,6,10,17,26,41,61 General term formula
3. 1,2,5,10,17 I know the answer!
4. 2 / 3, - 1,10 / 7, - 17 / 9,26 / 11?
5. What are the general formulas of 1,2,5,10,17,26 and 1,3,7,13,21?
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7. 3,7,13,21,31
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9. The general formula: 2 / 1, 3 / 2, 5 / 3, 8 / 5, 13 / 8, 21 / 13
10. Finding the general term formula of 6,10,15,21
11. 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!
12. 1. Add operation symbol to make 3 = 24 The order cannot be reversed
13. How to make 2,7,8,11 into a formula by using operation symbols and adding brackets to make the result equal to 24?
14. How to calculate 24 o'clock from 3, 7, 1 and 8? I solved (7-3-1) * 8
15. What symbol does 9999 use to calculate 24 points
16. Fill in the appropriate operation symbols and brackets on the horizontal line to calculate "24 points" - 4_____ 6 _____ （-3) _____ 2=24
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19. (1.992) * (1.992) * (19.922) = 1992 with operation symbol filled in the middle
20. Fill in the number in ×, and the operation symbol in × (□ ×) × 19 = 8 × (25 × 9)