86点9×1点七三-8点六九×7点三怎么简便运算

86点9×1点七三-8点六九×7点三怎么简便运算
2024-10-31 07:24:34
推荐回答(1个)
回答1:

86.9×1.73-8.69×7.3
=86.9×(1.73-0.73)
=86.9×1
=86.9