文档介绍：16-2×7=        91+85-26=        2×2×2=        2×9×8= 3×8×8=        2÷1-0=        50+2×8=        14+11-25= 9×5×5=        90-81+2=        85-83-1=        8×6+79= 6÷2-2=       96-2×4=       52-1×5=        4×24÷4= 19+6×6=        5×6+82=        1×3+63=        77+66-49= 5×70÷10=        25÷5×9=        20÷5+37=        63-16+16= 4×7×7=        80+5×7=        51-30+5=        9×40÷10= 45+91+29=        72-25÷5=        7×5×0=        60÷6+29= 4×3-0=        0×4+62=        36+69-16=        51+37-59= 73+24÷3=        1×8-7=        3×0+48=        6×4-19= 46+91+80=        60÷10+99=        12÷2-2=        5×4×7= 71-9-48=        96-44+68=        93-7×4=        28÷4+83= 12÷4-2=        4×4×2=       7×90÷9=        97-7-66= 60÷6-7=        8×27÷9=        81÷9÷1=        10÷1×8= 30÷10-1=        76+57-79=        37+1×5=        90+9×7= 32÷2÷2=        10÷1×7=        95-57+44=        53-4×1=4+4×8=        34+4×4=        5×16÷8=        92-6×2= 22+32+97=        9×36÷9=        8÷8-0=        4×6-11=        36÷9+69=        0+60-36=        13+8×8= 0×35÷7=        24-5÷5=        4×7+98=        42÷6-4= 62-10÷1=        96-2×3=        43+58-67=        79-38+40= 70÷10×5=        35÷5+31=        93-22+34=        10-63÷9= 63-62-0=        20÷5-3=        47-3×2=        115-9×5= 9×4-10=        60+72÷8=        8×4-22=        21-2×3= 1×0-0=        13+71+38=        16÷1÷8=        62-4×4=6×6×3=        18-63÷7=        59+74-70=        100-2×1= 8×5+45=        9×2-10=        51-19-0=        8×0+49= 3×4×9=        7×0+31=        89-76-11=        32÷8×6= 42÷6×2=        12÷4÷3=        36÷9×5=        54÷6×4= 9×9-61=        72÷8-1=        99-9÷3=        8×5-14= 70-3+13=        53-37-4=        74+31-16=        6×8+3= 47-11-21=        75+5×3=       6×4+61=        40÷4-5= 432÷8÷9=        74-8×7=        80÷10-4=        90÷9×5= 30÷5+58=        52+6×0=        62+86+70=        30÷10+65= 108÷3÷4=        50-1÷1=        15-1-7=        75+24÷6= 8×2×7=       4×5-19=        28+30+94=        23-0-18=5÷1×5=        12÷4÷3=        3×7+68=        11