6.66乘1.22加2.22乘6.34的简便运算 - 知识问答

6.66乘1.22加2.22乘6.34的简便运算

1个回答

6.66×1.22+2.22×6.34
=2.22×3×1.22+2.22×6.34
=2.22×3.66+2.22×6.34
=2.22×(3.66+6.34)
=2.22×10
=22.2

相关问题