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[5/8-(3/8+1/6)]×8/9
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相关问题
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3×1/9÷1/9×3= 5.4÷5/8+3.6×62.5%-5÷8=
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算一算.7×2-2= 4×9+9= 3×8-3= 3×6+3= 7×4+4= 4×9-9= 5×8+8= 6×3-6=
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计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
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计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
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计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
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计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
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1+2+3+4+5+6+7+8+9+10×1×2×3×4×5×67×8×9×10=
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4×7= 42÷6= 48÷8= 21÷3= 6×5= 8×5= 8×8= 9÷9= 54÷9= 72÷9= 36÷4=
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8/9_8/6×1=?