3.17乘2.58加3.17乘7.42简便运算

问题描述:

3.17乘2.58加3.17乘7.42
简便运算

3.17×2.58+3.17×7.42
=3.17×(2.58+7.42)
=3.17×10
=31.7
请采纳 谢谢 祝你幸福

3.17*2.58+3.17*7.42
=3.17*(2.58+7.42)
=3.17*10
=31.7

3.17×2.58+3.17×7.42
=3.17×(2.58+7.42)
=3.17×10
=31.7