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1+2+3+4+5+6×0+1+7+8+9=
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相关问题
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0.9×0.5= 0.7×0.8= 0.6×1.2= 1.7×0.3= 0.1×9.2= 0.4×1.3= 0.7×1.
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6/7×5/9+4/9×6/7(简便计算) 0.8-(2/3+1/12)×8/9 5/6÷(6-5/12-7/12
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2.1X+7.9X=6.9 5X+0.8×2=7.12X+5.8=8.2 6X-3×4=1.2
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口算. 4×1.2=2.8÷7=0.36×3=6.5÷0.5=5-0.4=3.01+1.5=0.9×0.7=9÷100=
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1+2+3+4+5+6+7+8+9-0-1-2-3-4-5-6-7-8-9+0+2+0=?
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3.6÷0.4-1.2×5 90÷【3.6-1.8】 【31.6-11.7】÷2.5÷0.4 3.4×7.8÷3.9 5
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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=______.