Take off the formula to calculate. (can simple calculate want simple calculate) beg big God urgent 1.4/9 4 / 9 4 / 4 2 8 / 3 / (3 / 8 * 4 / 1) 37 / 2 + 7 / 5 * 25 / 14) / 35 / 34 36x (1 + 4 / 1 + 6 / 1-3 / 1)

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• 1. 1. Three and one eighth × 7.4 - three and one eighth + 3.6 × 3.25 2. Ten and five quarters - (8.8-5 / 7) + 2 / 7 3. 3.14 × 4.3 + 7.2 × 7 / 3-1.5 × 3.14 4、1/2×3+1/2×3+1/3×4…… +1/2010×2011
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• 4. How to calculate 7 / 8 to 3 / 4 to 1 / 8?
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• 7. (8 / 9 + 1 and 3 / 7 + 6 / 11) / (3 / 11 + 5 / 7 + 4 / 9) simple calculation
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• 10. Simplifying (a ^ 2-2 + 2 ^ - 2) / (a ^ 2-A ^ - 2) is a process. Thank you,
• 11. Simplification 27 out of 9; - 30 out of 45
• 12. Use the integral multiplication formula to calculate the following questions: (1) 10 and one-third × 9 and two-thirds
• 13. 80.8x10.1-808 thank you,
• 14. 1 + 1 + 2 of 1 + 1 + 2 + 3 of 1 + 1 + 2 + 3 + 4 of 1 + 1+2+3+…… +1 out of 100 = simple calculation, thank you for your help
• 15. 1/2+(1/3+2/3)+（1/4+2/4+3/4）+···+（1/10+2/10+···9/10） And this (1 + 1 / 2) * (1 + 1 / 4) * (1 + 1 / 6) * · * (1 + 1 / 10) * (1-1 / 3) * (1-1 / 5) * · * (1-1 / 9)
• 16. 0.75+(-2 3/4)+(0.125)+(-12 5/7)+(-4
• 17. X-4 1 = 5 3 8 3 + x = 12 11 X-5 2-7 2 = 5 3 Help me solve these three equations!
• 18. 81^1/2-(1/8)^-1+3^0=?
• 19. (0.0081)^-1/4-[3*(7/8)^0]^-1*[81^-0.25+(27/8)^-1/3]^-1/2-10*0.027^1/3=?
• 20. (0.0081) ^ - 1 / 4 - [3 * (7 / 8) ^ 0] ^ - 1 * [81 ^ - 0.25 + (27 / 8) ^ - 1 / 3] ^ - 1 / 2-10 * 0.027 ^ 1 / 3 important process