脱式计算.(能简算的要简算)7.02×1.021.125÷0-查字典问答网
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  脱式计算.(能简算的要简算)7.02×1.021.125÷0.092001×0.54+2001×0.460.64×0.25+0.750.78÷26+0.5×0.02[2.8-2.8×(2.8-2.8)]÷0.78×[1÷(3.2-2.95)]33.4-26.465÷(2.6+4.1)

  脱式计算.(能简算的要简算)

  7.02×1.02

  1.125÷0.092001×0.54+2001×0.460.64×0.25+0.750.78÷26+0.5×0.02[2.8-2.8×(2.8-2.8)]÷0.78×[1÷(3.2-2.95)]33.4-26.465÷(2.6+4.1)

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2020-04-09 14:58
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梁京模

  (1)7.02×1.02,

  =7.02×(1+0.02),

  =7.02+7.02×0.02,

  =7.02+0.1404,

  =7.1604;

  (2)1.125÷0.09,

  =112.5÷9,

  =12.5;

  (3)2001×0.54+2001×0.46,

  =2001×(0.54+0.46),

  =2001×1,

  =2001;

  (4)0.64×0.25+0.75,

  =0.16+0.75,

  =0.91;

  (5)[2.8-2.8×(2.8-2.8)]÷0.7,

  =[2.8-2.8×0]÷0.7,

  =2.8÷0.7,

  =4;

  (6)0.78÷26+0.5×0.02,

  =0.03+0.01,

  =0.04;

  (7)8×[1÷(3.2-2.95)],

  =8×[1÷0.25],

  =8×4,

  =32;

  (8)33.4-26.465÷(2.6+4.1),

  =33.4-26.465÷6.7,

  =33.4-3.95,

  =29.45.

2020-04-09 14:59:17

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