一道数学题,用简便方法算 7.6×5.3-76×0.43

7.6×5.3-76×0.43
=76×0.53-76×0.43
=76×(0.53-0.43)
=76×0.1
=7.6

7.6×5.3-76×0.43
=76x0.53-76x0.43
=76x(0.53-0.43)
=76x0.1
=7.6

76(0.53-0.43)=76*0.1=7.6

7.6×5.3-76×0.43
=40.28-32.68
=7.6
其实就是先乘，然后把两个积按顺序减一下。
这可以自己算的，不过有点麻烦。

7.6×5.3-76×0.43
=76x0.53-76x0.43
=76x(0.53-0.43)
=76x0.1
=7.6
这种是简便方法计算的。

7.6×5.3-76×0.43
=7.6×5.3-7.6×10×0.43
=7.6×5.3-7.6×(10×0.43)
=7.6×5.3-7.6×4.3
=7.6×(5.3-4.3)
=7.6×1
=7.6

7.6×5.3-76×0.43
=76×0.53-76×0.43
=76×(0.53-0.43)
=76×0.1
=7.6