74×25+25÷ 2 简便算法式子
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:2024/07/27 12:59:43
74×25+25÷ 2 简便算法式子
![74×25+25÷ 2 简便算法式子](/uploads/image/z/5218844-68-4.jpg?t=74%C3%9725%2B25%C3%B7+2+%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E5%BC%8F%E5%AD%90)
74×25+25÷ 2
=76×25-2×25+25×1/2
=4×19×25-50+12.5
=19×(4×25)-37.5
=1900-37.5
=1862.5
=76×25-2×25+25×1/2
=4×19×25-50+12.5
=19×(4×25)-37.5
=1900-37.5
=1862.5