小学数学五年级上册简便计算练习.docx

《小学数学五年级上册简便计算练习.docx》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、小学数学五年级上册简便计算练习1 请用简便方法计算下列各题 0.25×0.28                0.125×3.2×2.5                  35×40.2     0.25×4÷0.25×4             3.5×9.9                     3.5×99+3.5     3.5×101-3.5               3.5×9.9+3.5×0.1             3.5×2.7+35×0.73    3.5×2.7-3.5×0.7            (32+5.

2、6)÷0.8              3.5÷0.6-0.5÷0.6    4.9÷3.5                   7÷0.25÷4                    7÷0.125 ÷8       7.35÷(7.35×0.25)          7.35÷(7.35÷0.25)            7.325-(5.325+1.7)    3.29+0.73+2.27            3.29-0.73-2.27              7.5+2.5-7.5+2.5    7.325-3.29-3.32

3、5           7.325-(5.325+1.7)            7.325-(5.325-1.7)3.29+0.73-2.29+2.27          3.29×0.25×4                0.125×8.8          63.4÷2.5÷0.4              4.9÷1.4                   3.9÷（1.3×5）        （7.7＋1.54）÷0.7            2.5×2.4                  2.7÷45        0.35

4、×1.25×2×0.8          32.4×0.9＋0.1×32.4                  15÷0.25    28.6×101－28.6            0.86×15.7－0.86×14.7           2.4×102      14－7.32－2.68          2.64＋8.67＋7.36＋11.33             2.31×1.2×0.5      （2.5－0.25）×0.4         9.16×1.5－0.5×9.16            3.6－3.6×0.5  

5、  7.6×0.8＋0.2×7.6               0.85×199              0.25×8.5×4       0.25×36              0.125×3.2×2.5               35×40.2 小学数学五年级上册简便计算归类练习 一、当一个计算题只有同一级运算（只有乘除或只有加减运算）又没有括号时，我们可以“带符号搬家”。 (a+b+c=a+c+b,   a+b-c=a-c+b,  a-b+c=a+c-b,    a-b-c=a-c-b;  a×b×c=a×c×b,     a÷

6、b÷c=a÷c÷b ,    a×b÷c=a÷c×b,     a÷b×c=a×c÷b,) 12.06＋5.07＋2.94                 30.34＋9.76－10.34                  25×7×4    34÷4÷1.7                       1.25÷25×0.8                102×7.3÷5.1                       二A、当一个计算题只有加减运算又没有括号时，我们可以在加号后面直接添括号，括到括号里的运算原来是加还是加，是减还是减。

7、但是在减号后面添括号时，括到括号里的运算，原来是加，现在就要变为减；原来是减，现在就要变为加。 a+b+c=a+ (b + c ),   a+b-c=a +(b-c),   a-b+c=a –(b-c),   a-b-c= a-( b +c) 933-15.7-4.3             41.06－19.72－20.28          3.29+0.73-2.29+2.27     7.325-(5.325+1.7)       3.29-0.73-2.27 7.325-(5.325+1.7)       7.325-(5.325

8、-1.7)     B、当一运算，原来是乘还是乘，是除还是除。但是在除号后面添括号时，括到括号里的运算，原来是乘，现在就要变为除；原来是除，现在就要变为乘。 a×b×c=a×(b