6.3×3.750
    3900-600+450
    653.47+1438.026
    233.808+775.914+428.304
    142.768×3
    6.270×22.770
    6.9×3.3
    129.319×6
    6.270×20.625
    6.270×22.62
    6.250×3.3
    116.904×2
    6.270×18.645
    5.65×3.30
    √1000
    !(70)
    340.39317*0.95
    35830.86*0.95%
    116.747×2
    （1.2+0.7）/2

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