..列完整算式1.25x3.43-1.25-1.43x1.25 1.6x16+0.4x361.6的前面是空白的
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![..列完整算式1.25x3.43-1.25-1.43x1.25 1.6x16+0.4x361.6的前面是空白的](/uploads/image/z/1073767-31-7.jpg?t=..%E5%88%97%E5%AE%8C%E6%95%B4%E7%AE%97%E5%BC%8F1.25x3.43-1.25-1.43x1.25+1.6x16%2B0.4x361.6%E7%9A%84%E5%89%8D%E9%9D%A2%E6%98%AF%E7%A9%BA%E7%99%BD%E7%9A%84)
..列完整算式1.25x3.43-1.25-1.43x1.25 1.6x16+0.4x361.6的前面是空白的
..列完整算式
1.25x3.43-1.25-1.43x1.25 1.6x16+0.4x36
1.6的前面是空白的
..列完整算式1.25x3.43-1.25-1.43x1.25 1.6x16+0.4x361.6的前面是空白的
1.25x3.43-1.25-1.43x1.25
=1.25x(3.43-1-1.43)
=1.25x1
=1.25
1.6x16+0.4x36
=1.6x16+1.6x9
=0.4x4x(16+9)
=0.4x4x25
=0.4x100
=40