11/5
1/2X2/5+9/10÷9/20
2个回答
相关问题
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脱式计算:(1)(3.8-1.8÷2)×0.5(2) 1 2 + 9 20 ÷ 9 10 - 5 8 (3) 9 10
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1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6
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怎么简便怎么算 40÷6/11 6/7x3÷9/14 1÷(3/5-3/10) 20/9÷[1/2x(3/5+7/10)
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9÷【1-(2/5+9/20)】简便运算
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算一算 1/5+2/9÷5/9= 4/15*5/6*5/12= 4÷2/3÷9/20=
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(4/3-5/3)÷10/7 (3/2+9/2)÷21/20 1-14/5÷7/5
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9 ÷ 3(2+1) 9 ÷ 3(2+1) = 9 ÷(3x2+3x1)= 9 ÷ (6+3) = 9÷9 = 1
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解方程: x+3.2=10.83 x÷13=20 9x-36=5x 2.5×3-2x=0.5 4(2-x)=1 x÷1.
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解方程X÷[3/8]=[9/10] 2+[2/5]x=18 3x-1.2×5=9
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解方程X÷ 3 8 = 9 10 2+ 2 5 x=18 3x-1.2×5=9