Question

0.56×2.5×0.4简便运算？

Answer 1

运用乘法结合律改变运算顺序结果保持不变，所以原式等于0.56×（2.5×0.4）=0.56×1=0.56。

Answer 2

0.56×2.5×0.4简便运算是0.56×（2.5×0.4）=0.56 ×1=0.56

Answer 3

0.56乘上2.5乘上0.4简便运算等于0.56乘上一垓等于0.56

Answer 4

0.56+0.4=0.6.0.6×2.5=1.5.

Answer 5

原式=0.56*（2.5*0.4）=0.56*1=0.56