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

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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
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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