8.6 ×13.9÷4.3的简便运算

问题描述:

8.6 ×13.9÷4.3的简便运算

8.6 ×13.9÷4.3
=8.6÷4.3 ×13.9
=2*13.9
=27.8

8.6÷4.3=2,2×13.9=27.8

27.8

8.6÷4.3 ×13.9