2.25× [ (4-11/6)÷3.25 ]如何简算
问题描述:
2.25× [ (4-11/6)÷3.25 ]如何简算
答
2.25× [ (4-11/6)÷3.25 ] (将该式×4,÷4),
=9× [ (4-11/6)÷13 ]
=9× [ (24/6-11/6)÷13 ]
=9× [ (13/6)÷13 ]
=9× 6=54