简便计算:10.1×4.5,12.5×32×2.5,24.75-3.75-6.25寻大侠和高手来解解这道题吧
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 14:31:08
![简便计算:10.1×4.5,12.5×32×2.5,24.75-3.75-6.25寻大侠和高手来解解这道题吧](/uploads/image/z/12703904-8-4.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%9A10.1%C3%974.5%2C12.5%C3%9732%C3%972.5%2C24.75-3.75-6.25%E5%AF%BB%E5%A4%A7%E4%BE%A0%E5%92%8C%E9%AB%98%E6%89%8B%E6%9D%A5%E8%A7%A3%E8%A7%A3%E8%BF%99%E9%81%93%E9%A2%98%E5%90%A7)
简便计算:10.1×4.5,12.5×32×2.5,24.75-3.75-6.25寻大侠和高手来解解这道题吧
简便计算:10.1×4.5,12.5×32×2.5,24.75-3.75-6.25寻大侠和高手来解解这道题吧
简便计算:10.1×4.5,12.5×32×2.5,24.75-3.75-6.25寻大侠和高手来解解这道题吧
10.1×4.5
=(10+0.1)×4.5
=10×4.5+0.1×4.5
=45+0.45
=10.45
12.5×32×2.5
=12.5×8×(4×2.5)
=100×10
=1000
24.75-3.75-6.25
=24.75-(3.75+6.25_
=24.75-10
=14.75
10.45,1000,14.75