How to calculate 25.8 - (8.3 + 6.75)

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• 3. When the numerator and denominator of 7 / 3 in 1991 are added with?, the score is 1 / 3?
• 4. The result of calculating 2 and 3 / 7 + (- 5) is_______ . calculation 5 / 12 - (1 / 2-3 / 4-7 / 12)
• 5. 1. Calculate 1 / 4 + 3 / 8 + 4 / 10 = 3 / 4 + 3 / 7 = 3 / 8 + 5 / 12= 1. Calculation 1 / 4 + 3 / 8 + 4 / 10= 3 / 4 + 3 / 7= 3 / 8 + 5 / 12= 1 / 3-1 / 4= 1 / 2 + 1 / 5= 1 / 6-1 / 7= 1 / 5 + 1 / 6= 1 / 7-1 / 8= 1 in 8 + 1 in 9= 1 / 2-1 / 3= 1 / 9 + 1 / 10=
• 6. One third minus one fourth plus three quarters how to calculate? The fastest right plus 10 points I know it's five sixths, but I want to make sure it's easy to calculate!
• 7. How to calculate 5.3 times 7.5 minus 7.5 times 3.3
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• 11. Simple calculation of 76 × 25 + 8 × 75
• 12. 3.75 by 4.23 by 36-125 by 0.423 by 2.8 3.75*4.23*36-125*0.423*2.8 =4.23*(3.75*36-12.5*2.8) =4.23*12.5*(0.3*36-2.8) =4.23*12.5*8 =423 0. How to get it; use the method of extracting common factor to seek advice from experts,
• 13. How about 3.2 × 42.3 × 3.75-12.5 × 0.423 × 16 3.2×42.3×3.75-12.5×0.423×16
• 14. 3.6 * 4203 * 3.75-12.5-12.5 * 0.423 * 28, not directly! It's 3.6 * 42.3 * 3.75-12.5 * 0.423 * 28
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• 18. (1) Use 2, 4, 8, 11, play 24 o'clock, three ways. (2) use 3, 7, 8, 13, play 24 o'clock, three ways Ask God to help me solve this problem
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