43×6.9+6.9×5.7的简便计算谁知道,尽快答复我,我还等着做题呢!

问题描述:

43×6.9+6.9×5.7的简便计算谁知道,尽快答复我,我还等着做题呢!

43×6.9+6.9×5.7

6.9*(43+5.7)
=6.9*48.7
=336.03