回覆列表
  • 1 # 使用者5635123734932

    62×7.1+2.9,

    =440.2+2.9,

    =443.1;

    4.2×0.25,

    =(4+0.2)×0.25,

    =4×0.25+0.2×0.25,

    =1+0.05,

    =1.05;

    5.2×4.3+0.8×4.3,

    =(5.2+0.8)×4.3,

    =6×4.3,

    =25.8.

    8.5+1.5÷0.25×4,

    =8.5+6×4,

    =8.5+24,

    =32.5.

    0.25×0.8+2.5%

    =0.2+2.5%,

    =0.225;

    32×125×2.5,

    =4×8×125×2.5,

    =8×125×(4×2.5),

    =1000×10,

    =10000;

    94÷(6.84×8.5-31.46÷0.55),

    =94÷(58.14-57.2),

    =94÷0.94,

    =100.

    13÷0.4÷2.5,

    =13÷(0.4×2.5),

    =13÷1,

    =13;

    1.25×2.5×0.8,

    =(1.25×0.8)×2.5,

    =1×2.5,

    =2.5;

    1.5×101-1.5,

    =1.5×(101-1),

    =1.5×100,

    =150;

    4.8×101,

    =4.8×100+4.8×1,

    =480+4.8,

    =484.8.

    3.25×4.7-7.8,

    =15.275-7.8,

    =7.475;

    0.57+0.43×0.24,

    =0.57+0.1032,

    =0.6732.

    945÷5÷3,

    =189÷3,

    =63;

    152×3÷2,

    =456÷2,

    =228;

    43×12×6,

    =516×6,

    =3096.

    200+25×33,

    =200+825,

    =1025;

    (25+26)×48,

    =51×48,

    =2448.

    576-(290+107),

    =576-397,

    =179;

    649+124-556,

    =773-556,

    =217.

    4.82-5.2÷0.8×0.6,

    =4.82-6.5×0.6,

    =4.82-3.9,

    =0.92.

  • 中秋節和大豐收的關聯?
  • 校園文化是如何理解“德育”的?