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    9+2= 6+7= 8+7= 19-6= 19-8= 6+6= 9+3= 19-5= 9-3= 7+6= 8+8= 6+9= 9+6= 6+8= 19-9= 9+5= 5+6= 4+3= 19-4= 7+8= 19-3= 9+4= 9+8= 4+2= 15-5= 9+7= 5+8= 9-8= 5+7= 12+2= 19-2= 8-8= 6-5= 19-1= 7-0= 3+9= 8+6= 10-7= 5+9= 11+6= 18-10= 1+9= 9+9= 19-10= 7+7= 7+5= 4+9= 4+7= 4+8= 10-3= 8+5= 8+3= 16-6= 18-8= 0+10= 17-6= 5+4= 6+5= 3+8= 6+2= 7+9= 8+4= 17-10= 16-3= 3+5= 2+9= 11+1= 7+4= 17-7= 11+4= 8+9= 7+11= 15-4= 19-7= 5+11= 15-10= 11+3= 4+1= 2+11= 16-4= 【查看更多】

     

    题目列表(包括答案和解析)

    χ-19.6=10.4            X+24.5=73.9              13χ-8χ=10.5
    χ÷9=21                 2.4m=9.6                0.2x-3=7.5．

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    5.2÷0.4+8.7×3.3-19.6                  1.08×0.8÷0.27
    2.05÷0.82+33.6                           9.07-22.78÷3.4

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    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    =

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    口算。
    22.7+19.6= 0.25×0.9×8=
    5.4÷0.3= 0.7×101-0.7=
    40×2.5= 11.6+3.8+5.4=
    253-198= 9000÷125=

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    算一算．
    2.6×3.7=26×
    0.37
    0.37
    =0.26×
    37
    37
    ；
    4.3×54=43×
    5.4
    5.4
    =
    4300
    4300
    ×0.054；
    8.2×0.19=0.82×
    1.9
    1.9
    =
    82
    82
    ×0.019；
    0.75×0.23=7.5×
    0.023
    0.023
    =
    0.0075
    0.0075
    ×23．

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