Question

簡(jiǎn)便方法計(jì)算．
5.76+6.16+4.24        5.27-3.9-0.1         3.7×4.5-4.4×3.7         0.25×36．

Answer 1

考點(diǎn)：運(yùn)算定律與簡(jiǎn)便運(yùn)算

專題：運(yùn)算定律及簡(jiǎn)算

分析：①根據(jù)加法交換律及結(jié)合律計(jì)算；
②根據(jù)減法性質(zhì)進(jìn)行計(jì)算；
③根據(jù)乘法分配律進(jìn)行計(jì)算；
④把36寫成4×8，根據(jù)乘法結(jié)合律計(jì)算．

解答： 解：①5.76+6.16+4.24        
=5.76+4.24+6.16
=10+6.16
=16.16

②5.27-3.9-0.1
=5.27-（3.9+0.1）
=5.27-4
=1.27

③3.7×4.5-4.4×3.7
=3.7×（4.5-4.4）
=3.7×0.1
=0.37

④0.25×36
=0.25×4×8
=1×8
=8

點(diǎn)評(píng)：考查了運(yùn)算定律與簡(jiǎn)便運(yùn)算，四則混合運(yùn)算．注意運(yùn)算順序和運(yùn)算法則，靈活運(yùn)用所學(xué)的運(yùn)算律簡(jiǎn)便計(jì)算．