能简算的要简算
30.8÷[14－(9.85＋1.07)]
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[60－(9.5＋28.9)]÷0.18
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2.881÷0.43－0.24×3.5
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20×[(2.44－1.8)÷0.4＋0.15]
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28-(3.4+1.25×2.4)
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2.55×7.1+2.45×7.1
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777×9+111×3 =
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0.8×〔15.5-(3.21+5.79)〕 =
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（31.8+3.2×4）÷5 =
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31.5×4÷(6+3) =
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0.64×25×7.8+2.2 =
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2÷2.5+2.5÷2 =
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194－64.8÷1.8×0.9 =
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36.72÷4.25×9.9 =
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5180－705×6 =
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24÷2.4－2.5×0.8 =
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(4121+2389)÷7 ==
671×15-974 =
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469×12+1492 =
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405×(3213-3189) =
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3.416÷（0.016×35） =
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0.8×[(10－6.76)÷1.2] =
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19.4×6.1×2.3 =
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5.67×0.2-0.62 =
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18.1×0.92+3.93 =
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0.043-0.24+0.875 =
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0.4×0.7×0.25 =
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0.75×102 +100-56.23 =
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0.78+5.436+1 =
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4.07×0.86+9.12.5 =
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30.8÷[14－(9.85＋1.07)] =
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[60－(9.5＋28.9)]÷0.18 =
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2.881÷0.43－0.24×3.5 =
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20×[(2.44－1.8)÷0.4＋0.15] =
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28-(3.4+1.25×2.4) =
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2.55×7.1+2.45×7.1 =
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777×9+1111×3 =
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0.8×〔15.5-(3.21+5.79)〕 =
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（31.8+3.2×4）÷5 =
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31.5×4÷(6+3) =
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0.64×25×7.8+2.2 =
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2÷2.5+2.5÷2 =
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194－64.8÷1.8×0.9 =
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36.72÷4.25×9.9
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5180－705×6
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24÷2.4－2.5×0.8 =
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(4121+2389)÷7 =
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671×15-974
469×12+1492 =
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405×(3213-3189) =
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3.416÷（0.016×35） =
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0.8×[(10－6.76)÷1.2] =
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19.4×6.1×2.3 5.67×0.2-0.62 =
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18.1×0.92+3.93 =
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0.4×0.7×0.25
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0.78+5.436+1 4.07×0.86+9.12.5
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