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    13×7○17×3 0×12○0+12 14×5○10×7 14×3○13×4 【查看更多】

     

    题目列表(包括答案和解析)

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    6+4
     
    13；      15-3
     
    12；    8+2
     
    11；     9+10
     
    18；
    11
     
    20-10；    10
     
    14-4；    7-2
     
    7+2；    6+8
     
    3+9；
    3+8
     
    2+5；     15-5
     
    3+8；   6+9
     
    9+6；    17-0
     
    20-4．

    查看答案和解析>>

    把自然数（0除外）按下表排列成A，B，C三行，1000是在
    C
    C
    行．
    A 1，6，7，12，13，18，19…
    B 2，5，8，11，14，17，20…
    C 3，4，9，10，15，16，21…

    查看答案和解析>>

    3
    4
    ×2    =
    1
    6
    +
    1
    2
    =
    5
    9
    ÷5    =
    1
    12
    ×
    6
    7
    =
    3
    4
    ÷3    =
    5
    4
    ×
    5
    4
    =
    5
    8
    ÷1    =    		 5-
    2
    3
    =
    3
    9
    ×12    =
    3
    5
    ×
    5
    12
    =    		 4-
    2
    3
    =
    7
    12
    ×3    =
    2
    7
    ÷14    =    		 8+
    3
    5
    =    		 0×
    13
    30
    =    		 39×
    3
    13
    =
    8×
    1
    2
    =
    5
    6
    ÷
    3
    4
    =    		 4×
    12
    7
    =    		 20÷
    4
    5
    =
    1-
    9
    10
    =    		 2.5×16=
    5
    12
    ÷
    1
    6
    =
    3
    2
    ×
    4
    5
    =
    8
    15
    ÷24    =    		 11÷
    22
    8
    =
    1
    2
    ÷
    3
    8
    =
    4
    7
    ÷
    2
    3
    =
    3
    4
    +
    1
    7
    =    		 1.5÷0.05= 0×
    1
    9
    ×9    =    		 1.5÷0.05=
    5
    8
    ÷
    7
    12
    =
    4
    5
    ×
    2
    3
    ×
    5
    6
    =
    5
    9
    ×
    2
    5
    =    		 2.5×0.4=
    14×
    5
    16
    =    		 (
    1
    2
    +
    1
    3
    )×12    =
    14
    33
    ×
    3
    7
    =    		 0×
    7
    9
    =
    5
    8
    ×
    5
    8
    =
    5
    21
    +
    4
    7
    =
    7
    9
    ÷7    =    		 2-
    1
    4
    =
    3
    5
    -
    1
    8
    =
    4
    21
    ÷
    8
    7
    =
    2
    3
    -
    1
    4
    =    		 6.25+1.75=
    1
    2
    ÷
    7
    18
    =
    9
    10
    ×6    =
    1
    8
    +
    1
    9
    =
    3
    4
    ÷
    4
    3
    =
    1
    2
    ×
    2
    3
    =    		 12-
    5
    7
    =    		 1÷
    2
    5
    =
    2
    9
    ÷18    =
    7
    28
    ÷
    2
    9
    =    		 10×1×
    2
    5
    =    		 20÷
    4
    5
    =
    1
    3
    ×9+9×
    2
    3
    =
    42÷
    21
    23
    =
    3
    8
    ÷12    =

    查看答案和解析>>

    3+4= 5+8= 0+8= 9-1=
    10-8= 6-4= 5-5= 9-4=
    8+8= 8+7= 7+7= 6+9=
    3+8= 5+6= 9+9= 15-0=
    4+13= 14-4= 12+6= 19-10=
    6-3+7= 19-6-2= 17-5+3=

    查看答案和解析>>

    直接写出得数．
    1
    3
    -
    1
    4
    =    		 0.33= 0.8×3.14=
    5
    16
    ×
    8
    15
    =
    4÷
    2
    5
    =    		 5÷1%= 3÷7+
    4
    7
    =
    1
    7
    ×
    7
    12
    =
    3
    4
    ÷0.75=    		 0.36×
    1
    6
    =    		 4×125%=
    1
    5
    ×
    1
    5
    ÷
    1
    5
    ×
    1
    5
    =
    3.14×（
    1
    2
    -50%）=    		 7.4÷10%= 9-2÷7= 202=

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