问题
填空题
0.4×0.3×0.25=0.3×（0.4×0.25）运用了乘法______定律．
答案
0.4×0.3×0.25，
=0.3×（0.4×0.25），
=0.3×0.1，
=0.03．
故答案为：交换律和结合律．
搜题请搜索小程序“爱下问搜题”
0.4×0.3×0.25=0.3×（0.4×0.25）运用了乘法______定律．
0.4×0.3×0.25，
=0.3×（0.4×0.25），
=0.3×0.1，
=0.03．
故答案为：交换律和结合律．