Question

5.4-0.45÷1.5的简便方法是什么？

Answer 1

回答：
5.4-0.45÷1.5
=5.4-0.15×3÷1.5
=5.4-0.15÷1.5×3
=5.4-0.1×3
=5.4-0.3
=5.1
运用了四则混合运算，先乘除后加减。

Answer 2

简便方法：5.4-0.45÷1.5 = 5.4-0.09/0.3 =5.4-0.3 = 5.1

Answer 3

5.4-0.45÷1.5，因为4.5÷1.5=3，所以0.45÷1.5=0.3, 5.4-0.3=5.1

Answer 4

5.4-0.45÷1.5
=5.4-0.3
=5.1