四年級數(shù)學下學期校本作業(yè)

4 4 4 4=0 4 4 4 4=24 4 4 4=0 4 4 4 4=228.17＋(24.27＋46.83) 83.67＋91.93—65.6728.17＋(24.27＋46.83) 83.67＋91.93—65.67四年級數(shù)學下學期校本作業(yè)（一）班級姓名座號一、填空。1、38X50—24+3可以同時先算（）法和（）法，再算（ ）法。2、已知12X3=36,15+4=60,36+60=96,把這三個算式列成一個綜合算式是（ ）。二、脫式計算。13X5+6X12 13+5X6X2038—15X3+9 360+4+5X32三、填空。1、已知100+25=4,6+4=10,12X10=120,把這三個算式列成一個綜合算式是（ ）。2、如果要改變852+152+19X8的運算順序，使其先算除法，再算加法，最后算乘法,那么算式應(yīng)該是（ ）。3、在。里填上“〉”或“〈”。5+25X20（5+25）X296+6—3096+（6—3）20+12+60+3020+（12+60）+390+（3+6X2）090+[（3+6）X2]4、30與60的和除以25與10的差,商是多少？正確的列式是（ ）。四、根據(jù)運算順序添上括號并計算。1、32X800—400+25 先減、再乘、最后除2、32X800—400+25 先除、再減、最后乘3、32X800—400+25 先減、再除、最后乘五、實驗小學四年級一班40人共拾可回收垃圾5400克,四年級二班45人共拾可回收垃圾4500克。哪個班級平均每人拾可回收垃圾多？多多少克？六、添一添。1、巧添“十”“一”“X”“+”“（）”，使等式成立。TOC\o"1-5"\h\z4 4 4 4=3 4 4 4 4=14 4 4 4=9 4 4 4 4=152、添上括號，使下面的算式成立。6 X 8 +12 + 4 — 1 = 526 X 8 +12 + 4 — 1 = 1454.4＋(1.33＋11.6)41.6＋61.62＋19.3854.4＋(1.33＋11.6)41.6＋61.62＋19.3848.66＋9.16＋26.3419.26＋13.75＋18.7448.66＋9.16＋26.3419.26＋13.75＋18.745.23＋24.65＋4.3571.66＋86.35—13.355.23＋24.65＋4.3571.66＋86.35—13.352.19＋(34.81＋7.35)77.04＋43.52—40.042.19＋(34.81＋7.35)77.04＋43.52—40.0416.62＋12.85＋13.1586.71＋62.16—1.1616.62＋12.85＋13.1586.71＋62.16—1.1698.23＋91.64－52.6432.23＋(13.54＋61.77)50.76＋2.28－35.7666.41＋(26.59＋20.42)81.6＋85.21－31.2119.98＋(16.02＋19.39)98.62＋16.3－1.6236.75＋(39.25＋11.36)85.64＋97.14－83.1441.79＋2.39－24.790.38＋(12.62＋24.09)17.17＋63.61－16.6115.44＋(39.56＋42.8)25.07＋94.94－7.0718.7＋46.27＋38.341.81＋4.29－23.8132.98＋35.93＋60.0717.4＋78.12－14.1248.71＋60.9－30.9 41.74＋24.6＋20.448.71＋60.9－30.9 41.74＋24.6＋20.448.71＋60.9－30.9 41.74＋24.6＋20.448.71＋60.9－30.9 41.74＋24.6＋20.485.78＋52.48－11.7821.41＋(30.59＋34.31)93.34＋76.74－45.3449.37＋62.08＋26.9271.52＋82.41－18.5213.13＋(56.87＋22.78)12.64＋55.96＋38.045.51＋(44.02＋25.49)5.53＋25.46＋5.5460.75＋23.78－17.756.98＋62.22＋1.7874.77＋71.05－25.7714.2＋9.85＋8.84.7＋93.96－7.9615.94＋(23.06＋46.3)91.74＋88.99－31.9998.19＋5.92－8.19 2.79＋(12.21＋40.08)98.19＋5.92－8.19 2.79＋(12.21＋40.08)98.19＋5.92－8.19 2.79＋(12.21＋40.08)98.19＋5.92－8.19 2.79＋(12.21＋40.08)45.04＋44.27－30.2736.22＋(28.02＋49.78)47.77＋66.01－42.0155.4＋(50.85＋20.6)52.45＋55.87－1.8743.03＋17.3＋37.729.61＋40.68－9.6897.46＋21.78－28.4619.22＋45.08＋28.7866.46＋82.04－41.0439.02＋8.93＋7.9852.18＋73.08－29.0825.05＋25.18＋45.8298.05＋38.17－31.0543.57＋(43.42＋12.43)61.02＋91.69－7.0265.35＋97.1－40.35 13.85＋(35.52＋59.15)65.35＋97.1－40.35 13.85＋(35.52＋59.15)65.35＋97.1－40.35 13.85＋(35.52＋59.15)65.35＋97.1－40.35 13.85＋(35.52＋59.15)61.92＋57.39－35.9245.51＋14.26＋42.4972.67＋91.7－16.79.55＋(50.24＋12.45)8.55＋(67.45＋32.21)3.75＋80.78－22.7838.21＋(19.47＋30.79)84.08＋20.69－71.0832.1＋22.55＋56.975.33＋49.68－25.3349.74＋49.09＋27.2648.88＋13.19－2.885.2＋(37.8＋26.65)60.99＋64.76－1.7648.98＋2.59＋31.0260.85＋96.81－69.8196.75＋20.55－6.55 61.51＋(48.91＋26.49)96.75＋20.55－6.55 61.51＋(48.91＋26.49)53.67＋18.88＋45.33 36.51＋63.77－6.7753.67＋18.88＋45.33 36.51＋63.77－6.7796.75＋20.55－6.55 61.51＋(48.91＋26.49)96.75＋20.55－6.55 61.51＋(48.91＋26.49)53.67＋18.88＋45.33 36.51＋63.77－6.7753.67＋18.88＋45.33 36.51＋63.77－6.7738.49＋53.44－20.4456.75＋79.35－19.3541.86＋24.81＋22.1483.55＋40.26－30.2628.52＋58.61＋3.3956.95＋61.27－31.9538.66＋16.71＋4.2943.38＋92.5－53.525.23＋43.27＋6.7751.9＋86.54－9.546.29＋(27.05＋26.71)58.03＋85.02－55.0210.52＋20.2＋8.4855.69＋96.88－23.8887.23＋38.46－11.46 1.59＋(15.06＋15.41)87.23＋38.46－11.46 1.59＋(15.06＋15.41)32.17＋38.06＋44.94 68.25＋59.58－33.2532.17＋38.06＋44.94 68.25＋59.58－33.2587.23＋38.46－11.46 1.59＋(15.06＋15.41)87.23＋38.46－11.46 1.59＋(15.06＋15.41)32.17＋38.06＋44.94 68.25＋59.58－33.2532.17＋38.06＋44.94 68.25＋59.58－33.2531.53＋(41.47＋11.37)78.48＋47.72－6.4847.82＋38.21＋33.7951.34＋88.89－14.896.65＋(10.84＋33.35)2.82＋78.62－11.6261.52＋(49.44＋24.48)92.48＋25.36－21.4848.18＋(40.82＋32.98)91.66＋15.06－1.665.18＋(17.89＋10.82)44.5＋70.59－5.519.61＋(37.39＋22.66)97.78＋87.21－78.7821.77＋(20.23＋48.86) 89.11＋77.33－56.3321.77＋(20.23＋48.86) 89.11＋77.33－56.3321.77＋(20.23＋48.86) 89.11＋77.33－56.3321.77＋(20.23＋48.86) 89.11＋77.33－56.3375.16＋(11.84＋30.52)68.92＋5.11－22.928.84＋(16.89＋26.16)89.3＋85.8－72.841.52＋42.11＋23.4875.64＋13.92－8.6448.21＋27.53＋53.4764.25＋39.54－25.2513.43＋46.2＋17.5782.26＋44.65－9.269.41＋(37.4＋31.59)83.21＋90.89－68.8910.49＋45.15＋3.5177.22＋69.16－25.2273.07＋86.51－45.078.15＋67.83－12.8329.87＋4.1＋65.13 52.29＋53.29－41.2929.87＋4.1＋65.13 52.29＋53.29－41.2942.84＋88.87－26.8442.84＋88.87－26.8429.87＋4.1＋65.13 52.29＋53.29－41.2929.87＋4.1＋65.13 52.29＋53.29