基本信息
文件名称：五年级上册数学期末《小数乘法简便运算》8大题型.docx
文件大小：140.7 KB
总页数：4 页
更新时间：2025-08-17
总字数：约2.52千字
文档摘要
五上数学期末《小数乘法简便运算》8大题型
一、乘法交换律
0.25×8.5×4
=0.25×4×8.5
=1×8.5
=8.5
12.5×0.96×0.8
=12.5×0.8×0.96
=10×0.96
=9.6
0.5×0.34×0.6
=0.5×0.6×0.34
=0.3×0.34
=0.102
二、乘法结合律
4.36×12.5×8
=4.36×(12.5×8)
=4.36×100
=436
0.95×0.25×4
=0.95×(0.25×4)
=0.95×1
=0.95
0.75×50×0.4
=0.75×(50×0.4)
=0.75×20
=15
三、添加因数“1”
56.5×99