2.8/25%简便运算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/16 06:51:06
2.8/25%简便运算
1...2.8/25%
2...3.7*99%+0.037*1
1...2.8/25%
2...3.7*99%+0.037*1
![2.8/25%简便运算](/uploads/image/z/15372872-8-2.jpg?t=2.8%2F25%25%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
2.8/25%
=2.8÷(1÷4)
=2.8÷1×4
=2.8×4
=11.2
3.7*99%+0.037*1
=3.7×0.99+3.7×0.01
=3.7×(0.99+0.01)
=3.7×1
=3.7
=2.8÷(1÷4)
=2.8÷1×4
=2.8×4
=11.2
3.7*99%+0.037*1
=3.7×0.99+3.7×0.01
=3.7×(0.99+0.01)
=3.7×1
=3.7