图闭穗巧轿键族庆
g
4.3*5.7+0.43*43简枯含贺没派便运算老返=4.3x5.7+4.3x4.3=4.3x(5.7+4.3)=4.3x10=43
4.3*5.7+0.43*43＝4.3*5.7+4.3*4.3=4.3*(5.7+4.3)=4.3*10＝43
