青岛版四上数学口算题

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1、1.2＋8.8＝5－0.26＝1.5×4＝0.1×0.01＝0.7＋0.23＝1－0.56＝2.4×0.5＝0.5÷100＝0.75＋0.25＝5－0.42＝4.3＋2.31＝0.59×10＝1.9÷100＝6.34－0.64＝4×0.05＝1.45＋6.36＝0.5×0.6＝1.25×0.8＝2.5×40＝2×0.05＝0.01×0.7＝30÷1000=0.4×0.5＝1.3×0.7＝0.7×0.6=0.42×3=2.5×4=0.5÷1000=35.9×1000=1.39÷100=80×0.4＝4.83×10=2.8-1.09=12-3.9=0×3.52=3

2、.215×100=8.8×1.2－1.2×7.8＝56×9+56=136-78-22=0.78×99+0.78=  0.08×0.3=      4.03+5.7=        3.54÷0.01=       0.72÷9=10-9.06=       5.72+4.18=        1÷0.25=          0.052=0.25×7.29×4=      65.8÷1.25÷8=2.用竖式计算。第④题精确到百分位）①6.8+13.22      ②10.8-0.98      ③0.932×4.08      ④16.65÷3.3   2. 

3、   计算下面各题，能简算的要简算。①15.66-3.98         ②3.6×9.8             ③0.98+199×0.98  ④0.25×4÷0.25×4      ⑤36.5÷（3.65×5）    ⑥0.71+0.29×1.561、直接写出得数。0.6×0.8=   3×0.9=   2.5×0.4=   3.6×0.4=  0.1×0.45=12.5×8=   50×0.04=   80×0.3=  1.1×9=       80×50=2、列竖式计算。3.08×0.43=     35.6×0.506=          （保留

4、两位小数）  （精确到十分位）  3、脱式计算（能简算的要简算）12.5×0.4×2.5×8   9.5×101    4.2×7.8+2.2×4.2       15.69－9.9       9×2.6＋2.6     0.87×3.16+4.648.7-7=       2.45÷10=      1-0.2=       4-1.3=1.34-0.23=   0.83-0.5=      0.65+0.4=    0.92-0.2=0.54+0.66=   125×16=       25×102=    1.2÷1000=2、计算（怎样简便就怎样算）

5、125×7×8               65×99   9.78-(3.78+2.6)        98.84-9.9  560÷35          73×156+156×2714×30=         6÷1000=        30×100=120÷100=        0.09×1000=     320÷（25×4）15.脱式计算（能简算的要简算）45×102                   810÷45÷2  25×16×125                 99×35+35  616-299           543-（12

6、5+143）