四年级上册口算400道

四年级上册口算400道亲爱的同学们、尊敬的家长和老师们，大家好！今天，我们为四年级的同学们精心准备了一份口算练习材料。口算能力是数学学习的基石，它不仅能提高计算速度和准确性，更能培养同学们敏锐的思维和快速反应能力。这份400道口算题，紧密围绕四年级上册数学的核心计算内容，希望能帮助同学们扎实掌握计算技巧，为后续学习打下坚实基础。一、万以内加减法口算(共100道)同学们，万以内的加减法是我们本学期计算的重要基础。在练习时，要注意相同数位对齐，从个位算起，加法满十进一，减法不够减时向前一位借一当十。加法练习(50道)1.340+50=2.670-20=3.230+400=4.890-300=5.150+60=6.720-50=7.380+210=8.650-240=9.450+300=10.980-400=11.270+50=12.810-60=13.560+330=14.740-220=15.320+600=16.850-500=17.410+80=18.690-70=19.280+450=20.930-310=21.160+700=22.540-300=23.370+200=24.880-440=25.520+170=26.760-230=27.290+610=28.910-550=29.430+350=30.680-180=31.190+500=32.730-400=33.580+210=34.840-320=35.360+430=36.950-600=37.240+650=38.770-250=39.490+300=40.820-510=41.310+580=42.660-330=43.550+240=44.900-450=45.220+770=46.780-160=47.440+440=48.860-340=49.330+560=50.920-670=减法练习(50道)51.650-30=52.780-400=53.920-560=54.430-210=55.800-350=56.570-200=57.690-420=58.380-160=59.740-500=60.910-370=61.520-310=62.830-480=63.660-220=64.490-150=65.700-330=66.850-620=67.540-290=68.930-440=69.610-380=70.760-550=71.450-190=72.880-360=73.590-270=74.630-400=75.900-610=76.720-350=77.500-240=78.810-570=79.640-180=80.470-320=81.790-530=82.860-290=83.550-410=84.680-300=85.940-760=86.510-280=87.730-150=88.890-440=89.620-390=90.460-200=91.750-580=92.800-630=93.530-370=94.670-450=95.910-220=96.480-130=97.710-360=98.840-590=99.600-240=100.570-380=二、多位数乘一位数口算(共150道)乘法是本学期的重点内容，同学们要熟练掌握一位数乘两位数、一位数乘几百几十数的口算方法，注意积的末尾0的个数。整十、整百数乘一位数(50道)101.20×3=102.40×2=103.300×4=104.50×6=105.700×2=106.80×5=107.600×3=108.90×4=109.200×7=110.50×8=111.30×9=112.800×6=113.60×7=114.400×5=115.70×3=116.900×2=117.30×5=118.600×7=119.80×6=120.500×4=121.90×7=122.40×8=123.200×9=124.70×5=125.300×6=126.50×9=127.800×3=128.60×4=129.900×5=130.20×8=131.400×7=132.70×6=133.30×6=134.500×8=135.80×7=136.60×9=137.200×5=138.90×8=139.40×5=140.300×8=141.700×6=142.50×7=143.80×9=144.600×9=145.20×6=146.900×8=147.40×7=148.30×8=149.500×2=150.70×8=两位数乘一位数(不进位)(30道)151.12×3=152.21×4=153.33×2=154.13×3=155.22×2=156.31×3=157.14×2=158.23×3=159.42×2=160.11×5=161.32×2=162.24×2=163.12×4=164.33×3=165.21×3=166.14×3=167.22×4=168.34×2=169.13×2=170.41×2=171.23×2=172.31×2=173.15×2=174.24×3=175.32×3=176.11×8=177.22×3=178.13×4=179.33×4=180.21×5=两位数乘一位数(进位)(40道)181.15×3=182.26×2=183.37×2=184.17×4=185.24×4=186.35×3=187.19×2=188.25×3=189.43×2=190.16×5=191.27×3=192.32×4=193.18×3=194.23×4=195.44×2=196.15×4=197.28×2=198.36×3=199.22×5=200.17×3=201.34×3=202.25×4=203.19×3=204.42×3=205.26×3=206.18×4=207.33×5=208.24×5=209.16×3=210.35×2=211.27×2=212.41×3=213.14×5=214.23×5=215.31×5=216.12×5=217.29×2=218.37×3=219.15×5=220.22×6=几百几十数乘一位数(30道)221.120×3=222.210×2=223.300×5=224.150×4=225.200×6=226.320×2=227.110×7=228.230×3=229.400×4=230.130×3=231.240×2=232.310×3=233.140×2=234.220×4=235.330×2=236.160×3=237.250×2=238.420×2=239.170×2=240.300×6=241.210×4=242.120×4=243.260×2=244.340×2=245.180×3=246.200×7=247.350×2=248.190×2=249.270×2=250.320×3=三、除数是一位数的除法口算(共150道)除法口算要理解算理，特别是整十、整百、整千数除以一位数，以及几百几十、几千几百数除以一位数的口算方法，注意商的末尾0的处理。整十、整百、整千数除以一位数(50道)251.60÷2=252.80÷4=253.90÷3=254.40÷2=255.70÷7=256.50÷5=257.80÷2=258.60÷3=259.30÷3=260.40÷4=261.800÷2=262.600÷3=263.900÷3=264.400÷4=265.500÷5=266.700÷7=267.200÷2=268.300÷3=269.600÷