小数乘除与混合计算题练习题集

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1、0.8＋0.6=1.25×80=5.24＋3.76=625×0.8=4.2－3.6=0.32÷16=13＋0.26=9.6÷16=14.5－0.24=4÷8=1.3＋8.46=0.8－0.45=5×2.4=1－0.01=8.1÷3=2.4÷12=250×0.4=20.5＋2.05=37.5×400=0.78＋2.2=1.5×8=6×1.5=25×0.4=9.6÷16=4－0.04=4.15＋0.85=10－0.1=0.13×7=9.6÷4=0.16÷8=0.8×25=      0×4.23=       0.57+0.43=       2.4×0.2=  

2、    0.02×500=2.89+9.17=2.8×10=      8.29×100=      2.5×0.4=      4.87-1.7=      8.07×1000=25.6×3=0.328÷8=3.51÷3=7.21÷7=23÷25=3.64÷14=1.06×0.82=7.8÷28=600÷50=2×0.16=84×0.25=0.36×0.9=0.06×0.75=2.4÷3=20×0.5=0.8×6=1000×0.09=1.35÷27=0.41×2.01=58×0.32=1.08×52=0.63×0.12=8.5×0.54=5.62×2.4=0

3、.28×0.16=二、列竖式计算1.64＋2.35=8.65－6.31=28.448÷14=0.58×250=12.5＋3.6=10.88÷34=10－7.64=1.86×7=13.88－6.29=926×0.15=8÷500=26.3＋7.93=13.6＋8.46=100.2－2.28=44÷9精确到百分位23×7.06=三、计算（能简便的用简便方法计算）8×25×1．25×164．04×25045．55－（6．82＋15．55）3．2×99＋3．24．8×39＋61×4．834．52－17．87－12．232．5×56+4．5×6548．9×109－489

4、4．57+3．17+3．43+5．83（85＋40）×（20－5）578－405÷45×164．6×56＋48×4．6－4．6×45x＝450 12（6－x）＝42  1.2×6+4x＝12                （4）8.5x－x＝22.5   用简便方法计算。 0.25 ×3.2×12.5            36×10.1    0.25×44               22.2×4+17.8×4    3.8×6.7+3.3×3.81.28×0.29-0.29×0.28用递等式计算。 2.6+1.4×1.5－1.5       （37－3.

5、6÷4.8）÷12.5    2.6+2.4×（1.4－1.05）    15.6÷16×（0.25+1.25）30.8÷[14-(9.85+1.07)]     [60-(9.5+28.9)]÷0.18   2.881÷0.43-0.24×3.5     20×[(2.44-1.8)÷0.4+0.15]    28-(3.4+1.25×2.4)       2.55×7.1+2.45×7.1    777×9+1111×3         0.8×[15.5-(3.21+5.79)(31.8+3.2×4) ÷ 5      31.5×4÷(6+3)    0

6、.64×25×7.8+2.2        2÷2.5+2.5÷2     469×12+1492          19.4×6.1×5.67×0.2-0.62     18.1×0.92+3.93         0.4×0.7×0.25     0.78+5.436+1          4. 8× 5÷4+1÷4  9x5÷6+5÷6     3÷4x8÷9-1÷3      31x5÷6-5÷6       16. 5÷9x18-14x2÷7     36. 178-145÷5×6+42     7.2÷0.8-1.2×5         6.5×（

7、4.8-1.2×4）       28-(3.4+1.25×2.4)