小学四年级下册全册数学口算题.doc

.四年级数学口算题。 姓名：_ 分数：_一、填空（7分） 1、（ ）+45=55+（ ），这里运用了加法（ ），用字母表示是（ ）。 2、交换两个（ ）的位置，（ ）不变，这叫做乘法交换律。 3、乘法分配律可用字母表示为（ ）。二、判断题。（对的打，错的打。）（10分） 1、27+33+67=27+100 （ ） 2、12516=12582 （ ） 3、134-75+25=134-（75+25） （ ） 4、先乘前两个数，或者先乘后两个数，积不变，这是乘法结合律。（ ） 5、1250（255）=1250255 （ ）三、选择（把正确答案的序号填入括号内）（8分） 1、56+72+28=56+（72+28）运用了 （ ） A、加法交换律B、加法结合律C、乘法结合律D、加法交换律和结合律 2、25（8+4）=（ ） A、258254 B、258+254 C、2548 D、258+4 3、3845=（34）（85）运用了 （ ） A、乘法交换律B、乘法结合律C、乘法分配律D、乘法交换律和结合律 4、101125= （ ） A、100125+1 B、125100+125 C、1251001 D、1001251125四、连线（8分） 25（100+4） 25411 375102-3752 254+25100 25114 （300-75）-（123+77） 300-123-75-77 375100五、计算。 1、直接写出得数（11分）。 12+88= 258= 100-35-25= 1000125= 65+35= 8125= 235-（35+27）= 300（254）= 37+63+98= 2399+23= 725+90-25= 2、怎样简便就怎样计算（21分）。 355+260+140+245 10299 2125 645-180-245 382101-382 460508 358+356-435五、 把下面的分数、小数互化。（10分）0.14= 0.9= 0.10= 0.54= 0.101= 六、在里填上“”、“”或“=”。（10分）33.8 6.56.50 2.452.080.010.1 11.01 七、转换下列单位（4分） 58厘米=（ ）米 540克=（ ）千克 7元8角3分=（ ）元 8千克10克=（ ）千克八、应用题。（分） 1、雄城商场14季度分别售出冰箱269台、67台、331台和233台。雄城商场全年共售出冰箱多少台？ 2、水果店运来24箱香梨和28箱苹果，每箱水果都是25千克。这些水果共有多少千克？33.8.3-7=4.7-4.3= 8.2-5.2=2.6-0.8=4.7-2.5=8.4-0.6=5.7-3.7=1-0.9=3.5-1.3=3.5-3.4=9.7-5.4=4.3-1.4=7.1-0.2=8.2-6.8=6.9-2.5=2.1-1.7=6.8-2.9=4.3-1.2=6.9-1.2=3.9-0.8=1.5-0.8=5.1-3.4=3.4-2.3=6.7-3.1=8.3-3.3=8.8-3.2=12.3-4.5=5.1-0.9=1.2-0.3=4.2-0.1=7.8-3=2.2-0.6=8.9-5.4=2.7-1.2=8.5-7.6=5.2-0.9=6.2-2=8.4-6.2=6.3-4.1=3.2-1.9=7.1-5.4=9.8-5.4=8.4-4.2=3.8-0.2=7.9-0.1= 6.7-6.4=1.2-0.9=1.4-0.7=3.4-1.2=5.3-3.2=5.1-2 =6.7-3.4=9.6-5.2=6.7-2.9=7.1-4.8=第二大周 口算测试 一位小数的减法（二）姓名:_ 班级:_5.3-2.7=2.6-0.5=7.5-7.2=4.3-0.1=6.1-3.0=6.5-2.2=70-0.5=4.3-2.3=6.2.-1.4=4.5-1.2=8.6-5.3=3.7-1.5=7.3-4.1=7.4-2.4=3.1-1.8=8.2-7.1=8.6-3.6=9.6-2.2=5.4-3.2=8.4-5.1=6.2-3.2=3.1-0.2=3.7-1.7=4.3-2.1=6.4-1.9=4.5-2.7=9.5-2.3=6.7-2.1=8.4-7.4=6.3-2.4=3.7-2.7=7.5-4 =2.3-1=6.3-2.6=2.4-0.5=3.2-1.1=5.2-1.6=7.3-2.6=5.4-1.2=7.4-6.3=5.1-3.4=6.2-4.1=7.5-3.7=7.4-3.5=5.3-5=6.4-5.2=8.3-5.1=7.2-5.1=5-2.3=6.5-4.3=7.1-4.3=5.6-7.3=5.1-0.8=5.3-5.1=5.1-5=7.5-3.1=5.4-1.2=5.5-3.4=7.3-2.3=5.4-2.1=7.3-5.2=7.2-4.1=7.3-1.6=第三大周 口算测试 两位小数加法（一）姓名- 班级-3.12+3.21=4.12+1.23=5.43+0.75=8.21+5.12=3.15+5.01=4.52+6.80=4.03+4.12=4.75+0.80=0.21+5.61=7.06+5.63=5.31+0.61=8.02+0.80=5.55+2.11=4.09+2.01=5.13+4.12=4.60+0.08=2.43+0.12=7.23+7.01=8.34+5.12=7.23+9.01=1.01+3.12=3.54+0.01=4.27+7.10=4.01+4.15=0.12+0.09=0.14+0.23=5.13+7.12=4.14+3.02=3.13+7.02=8.31+0.31=8.71+7.12=6.41+6.21=8.04+5.02=6.03+5.02=5.21+5.21=6.03+2.31=4.12+0.23=2.13+4.12=0.02+0.51=0.54+2.01=3.02+8.02=8.03+2.10=3.24+4.02=8.23+2.21=2.3+4.32=3.12+4.23=7.02+3.01=4.23+6.34=4.23+3.121=4.53+5.23=5.72+9.01=3.24+6.12=4.34+3.24=6.43+4.43=3.54+6.35=6.23+6.24=6.24+4.36=5.63+5.24=4.25+5.04=0.03+2.90=第三大周 口算测试 两位小数加法（二）姓名- 班级-3.47+8.24=5.32+6.15=7.34+5.46=3.45+6.14=2.13+3.45=3.23+4.12=4.12+6.23=5.35+3.24=6.12+5.14=6.01+0.10=0.23+0.14=0.14+0.46=3.04+6.12=4.01+5.23=5.01+3.13=2.34+4.34=0.12+0.02=0.23+4.23=0.12+3.23=0.23+0.04=2.03+1.45=7.45+4.35=2.34+3.01=4.02+9.02=0.91+0.91=0.28+0.71=0.31+0.13=5.39+3.24=4.38+0.23=5.41+3.25=1.24+4.13=6.57+0.04=0.45+6.34=9.02+0.52=3.43+0.80=5.40+0.27=0.35+0.26=4.5+5.47=4.25+2.79=3.25+5.36=5.46+6.47=5.24+6.10=0.52+0.30=0.92+0.92=0.34+8.01=0.29+3.45=6.23+4.23=4.37+0.91=0.28+0.91=0.58+0.15=6.03+9.04=4.76+3.20=5.20+0.25=5.27+0.91=0.93+0.47=5.26+9.12=9.02+0.45=8.04+0.62=2.34+0.37=0.17+0.62=第三大周 口算测试 两位小数加减法（一）姓名- 班级-8.60-6.39=8.49-6.31=7.40-4.04=7.68-6.50=3.90-2.76=6.91-5.39=6.97-5.97=8.25-4.64=8.78-0.52=1.27-0.21=8.42-7.04=6.76-6.61=0.41+0.95=4.15+7.08=2.59+9.10=3.51+9.00=4.54+2.55=8.70+1.16= 1.31+5.61= 7.71-0.11=8.64-7.85=8.68+0.84=2.62+3.19=5.93-1.20=3.66+5.90=6.14-2.01=5.58+0.13=5.15-4.79=5.29+6.33= 5.86-1.95=3.79-3.47=8.89-0.20=7.42+9.92=3.58-2.87=7.31-2.51= 8.81-5.75=6.67-2.72=3.04+5.71=1.73+4.32= 4.47+9.24= 8.53+3.94= 8.36-3.72=第三大周 口算测试 两位小数加减法（二）姓名- 班级-6.78-1.84= 6.35-2.83= 0.6+7.50=7.57+6.82= 5.18+2.34=8.74-6.93= 1.05+9.02=4.30-4.19=4.94-2.06=7.93-4.75= 6.03-2.94= 4.62+3.02= 9.32+3.40=5.43+3.23=3.55+5.33= 8.21-4.90=2.38+2.40= 9.28+1.69= 6.89-0.88=4.97+7.29=3.34+4.51=6.29+0.67= 9.60+0.73= 2.23+5.50=9.81-0.09=2.80+6.46= 7.74+1.48=4.22-2.66= 8.28+7.36= 7.48-6.52=4.64-3.25= 5.62+2.82= 6.63+7.16= 5.94-0.36= 8.80+7.97=7.87+9.72= 8.76+0.75= 7.37-4.92=7.52-1.82=3.42+6.99= 4.06+4.85= 7.55+7.05=第二大周 口算测试 两位小数加减法（三）姓名- 班级-8.93-2.34=6.72-0.35=7.25-0.04=8.95-4.26=7.54-5.4=4.73-3.25=6.26-3.14=5.36-2.10=5.73-3.14=5.79-3.14=6.53-1.03=8.12-4.32=7.43-0.14=7.52-4.12=5.31-4.12=9.04-3.02=6.31-3.21=5.92-4.14=6.12-3.01=7.29-4.01=7.13-2.08=8.64-3.41=7.23-2.13=5.23-1.23=4.15-3.12=7.12-3.12=7.52-3.12=7.43-4.12=8.25-6.14=7.16-0.4=9.46-2.31=9.75-4.24=5.9-5.35=6.26-4.23=5.34-3.21=9.33-3.33=5.34-2.32=7.43-4.23=6.23-4.15=8.53-2.13=6.13-4.23=7.23-2.01=8.42-0.01=8.53-5.34=7.32-1.09=9.87-6.24=6.54-6.50=8.63-5.43=7.12-3.21=7.41-4.12=8.42-5.09=5.32-1.01=5.21-0.21=6.30-0.02=0.34-0.01=8.43-4.21=6.43-2.01=小数乘整数(1)姓名：_ 班级:_0.4 4 =2 4.4 =3.9 2 =2 2.8 =1.6 3=7.4 3=2.4 3=3.7 3=7.1 3 =2.2 4 =8 4.1 =6.3 4=1.9 4=2.3 4=7 2.6 =6.7 4 =1.9 8 =7.4 0 =4.3 1 =2.2 2 =2.5 9 =6.7 8 =2.3 8 =4.4 2 =5.4 6 =8.2 9 = 4.5 6 =3.4 8 =1.9 3 =2 4.3 =3 5.4 =3 6.6 =3 6.7 =0.3 8 =0.4 7 =3.4 4 =5 0.8 =1.5 6 =6 8.1 =0.6 9=6.3 4=1.9 4 =2.3 3 =6 4.3 =8 4.3=3.9 2 =2 2.8 =1.6 3=7.4 3=2.4 3=3.7 3=7.1 3 =2.2 4 =8 4.1 =3 5.4 =3 6.6 =3 6.7 =0.3 8 =0.4 7 =小数乘整数(2)姓名：_ 班级:_0.3 100 =0.46 10 =6.6 10=5.2 10 =2.4 10 =7.9 10=10 9.72 =2.3 1 10=10 3.3 1=10 0 6.8 =10 8.37 =1 0 4.6 =10 5.66 =0.1 10 =10 8.5 =68.2 10 =51.2 100 =4.2 100 =10.3 10=1.3 10 =1000 5.4 =5.3 100 =1000 6.73=10 8.1 =100 7.4 =8.87 100=8.98 100=8.8 10 =1000 5.2 =100 2.05 =4.9 1000= 10 0.22 =1000 2.2 =10 2.3 =100 2.6 =100 2.8 =1.67 1000 =7.4 10 =2.4 1 00=100 3.19 =100 3.2 =2.2 100 =100 3.8 =9.9 1000 =100 4.1 =6.3 7 10 =100 4.1 =0.3 10=1000 0.3 5=10 4.38 =6.4 100 =2.5 6 100=13.4 10=0.5 100 =0.5 10 =20.6 1 00=0.9 100 =100 10.8 =10 4.52 =1000 5.41 =小数乘整数(3)姓名：_ 班级:_2.4 1 00= 100 3.19 =0.3 10=1000 0.3 5=10 4.38 =6.4 100 =2.5 6 100=13.4 10=100 3.2 =2.2 100 =100 3.8 =9.9 1000 =9.5 100 =100 6.76 =5.5 10 =100 6.93 =9.2 100 =10.3 10=1.3 10 =1000 5.4 =5.3 100 =1000 6.73=1.46 100 =27.4 100 =2.54 1000 =3.76 100 =7.17 1000 =2.25 1000 =100 4.15 =8.3 5 =100 8.35 =10 8.38 =7.8 10 0=10 8.64 =10 8.9 =7.4 100 =4.36 100 =1.25 8=0.25 4=3.2 5= 7.2 6=4 6.1 =8.4 2 =10 6.48 =5.1 3 100= 100 8.2 7=4.31 8=8.22 3 =1000 5.4 =5.3 100 =1000 6.73=10 8.1 =100 7.4 =8.87 100=2.8 30=8.3 2 =7.5 2 0=7.9 2 =6.6 4 =4 5.5 =小数乘整数(4)姓名：_ 班级:_3.76 100 =7.17 1000 =2.25 1000 =1.25 8=0.25 4=3.2 5= 7.2 6=1000 6.82 =100 8.3 =100 4.6 =0 5.6 =58.1 100 =14.1 4=7 2.1 =100 5.3 =44.2 100=100 8.05 =100 8.2 =4.3 6 10 =100 8.35 =4.9 1000= 10 0.22 =1000 2.2 = 10 2.3 =100 2.6 =100 2.8 =1.67 1000 =7.4 10 =2.4 1 00=3.9 2 =2 2.8 =1.6 810=7.45 100=2.4 3=0.7 10=7.1 100 =2.2 4 =8 4.1 =3 5.4 =100 6.6 =3 6.7 =0.3 8 =0.4 7 =8.4 2 =9.5 100 =100 6.76 =5.5 10 =100 6.93 =9.2 100 =5.2 6 10 =2.5 100 =0 5.6 =58.1 100 =14.1 4=7 2.1 =100 5.3 =44.2 100=小数乘整数(5)姓名：_ 班级:_8.6 10=9.5 10 =8.6 100 =2.6 100=9.56 10=6.5 100=10 2.05 =4.9 10 =10 2.2 =7.1 10 =3.9 10 =2.12 100=1.6 510 =7.4 10 =2.4 100 =100 3.19 =10 3.2 =10 3.4 =10 3.8 =9.9 10 =3.2 5= 7.2 6.0 =7.4 6.1 =8.4 6.2 =4.0 6.48 =5.1 3 100= 100 5.3 =100 8.2 7=4.31 8=8.22 3 =10 8.38 =7.81 100 =10 8.64 =1.31 8=7.4 10 =4.3 5 1 00=2.2 10 =6.1 2 3 =5.2 4 3 =4.1 4100=9.22 100 =5.2 10 =2.5 100=100 7.2 =7.5 10 =7.4 100 =1.3 9 100=100 8.05 =100 8.2 =4.3 6 10 =100 8.35 =10 8.38 =7.8 10 =10 8.64 =10 8.9 =7.4 100 =4.3 100 =小数乘整数(6)姓名：_ 班级:_8 4.1 =6.3 4=1.9 4 =2.3 3 =6 4.3 =8 4.3=6.4 10 =2 4.4 =3.210=8.8 3 100=10 4.72 =8.8 10 =8.3 10=7.5 2 =7.9 10 =6.6 4 =4 5.5 =3 5.5 =.0 6.48 =4.1 6 =9.3 6 =1.4 50 =4.6 9 = 1.6 5 0= 9.7 8 =9.2 6 =7.4 2 0= 5.1 7 = 7.4 100 = 8.4 2 =9.5 100 =100 6.76 =5.5 10 =100 6.93 =9.2 100 =8.6 30=8.6 6 =9. 1.6 =6 1.8 =4.9 2=4 2.2 =7.1 3 0=3.9 2 =2.5 4 =3.2 4=2 2.8 =1.6 30=7.4 3=2.4 3=8 4.3=4 4.4 =3.7 3=7.1 3 =2.2 40 =8 4.1 =6 4.2 =8 4.2=6.3 4=1.9 4=2.3 4=小数乘整数(7)姓名：_ 班级:_7.2 4 100 =7.4 100 = 8.4 2 =9.5 100 =100 6.76 =5.5 10 =100 6.93 =9.2 100 =5.2 10 =2.5 100 =8.8 7=7.5 3 =7.4 4 =1.3 4 8 =100 8.05 =100 8.2 =100 9.2 =6.6 10=5.2 100 =0.4 6 =0.92 3 =0.17 2 =2.3 100 =10 3.3 =3.2 5=5.1 5=4.1 5=4.3 4 2 =8.2 100 =10 8.38 =4.31 8=8.22 3 =10 8.38 =7.81 100 =2.33 4=6 4.2 2=8 4.3=4 4.4 1=2.5 100 =3.2 4=8 4.2=8.9 2 =3.2 10=8.8 3 100=10 4.72 =8.8 10 =8.3 10=7.5 2 =9.22 100 =5.2 10 =2.5 100=100 7.2 =7.5 10 =7.4 100 =小数乘整数(8)姓名：_ 班级:_7.3 0=4.9 100=20 2.2 =7.1 5 100=3.9 2 =2.1 20 =1.6 30 =7.4 100 =10 3.1 =100 3.19 =7.1 10=100 3.4 =0 3.8 =9.9 10 =100 4.1 =6.3 100 =1.9 3 =2 4.3 =100 4.3 =100 4.38 =100 9.56 =7.9 100=10 9.72 =2 9.8 =100 3.3 =1000 6.82 =100 8.3 =100 4.6 =0 5.6 =58.1 100 =14.1 4=7 2.1 =100 5.3 =44.2 100=100 1.2 =10 4.2 =3 5.4 =3 6.6 =3 6.7 =0.3 8 =0.4 7 =3.4 4 =5 0.8 =1.5 6 =6 8.1 =0.6 9=3.7 100 =2.7 100 =100 7.7 =100 4.2 =7.4 4 =1.3 4 8 =100 8.05 =100 8.2 =小数乘法口算练习 姓名 1.54=2.54=0.13 4=5.410= 0.180.3= 4.21000= 0.445= 3.60.1= 8.5100= 8.54= 3.2100= 1.20.3 = 0.497= 0.0425= 0.0315= 44.2= 10000.756= 0.5100= 00.25= 10.01= 1.258= 3.82= 160.2= 9.30.3 0.20.1= 0.96= 2.10.3= 70.08= 1.870= 0.245= 0.20.5= 600.5= 0.051.6= 0.51.1= 0.80.5= 1.254= 40.25= 1.80.5= 80.5= 2.510= 6.32= 0.924= 801.6= 0.564= 1.60.8= 6.39= 0.158= 7.20.6=4.24= 3.090= 1.470.4= 0.40.25 1.54= 2.54= 0.13 4= 4.21000=1.258= 1.254=0.180.3= 0 .0425= 10000.756= 70.08=0.051.6= 小数乘法口算练习2 姓名 40.25=0.51.1= 0.80.5= 0.5100= 0.20.5= 600.5= 8.5100= 300.5=0.780.2= 3.920=0.50.28=0.80.9= 1.58=1.55= 3.60.2= 2.58=40.25=7.254= 1.940= 3.40.7= 3.65= 2.52= 0.510= 0.68= 2.12= 5.6100= 4.52= 3.080.01= 4.951000= 6.90.1= 0.40.5= 2.810= 0.70.8= 0.420= 0.87 0.78 1.32810.323.50.20.90.350.6100.050.1370.740.054 12.580.4503.2502.342.637.50.10.450.24.123.50.0190.509.83.90.34.122.631.2587.50.110.060.90.3小数乘法口算练习3 姓名 90.5=2.50.4=0.4258.20.8=0.20.4=0.224=0.90.2=3.991=40.3=300.1=0.50.2=10.08=4.80.5=2.010=2.45=1.258=0.21100=3.40.4=7.80.5=2.99=1000.8=6.80.4=0.80.1=0.740=8.15=0.80.25=10.98=0.80.5=0.540=0.1258=00.54= 40.25= 1.258 = 0.1258 0.812.5= 2.50.4 0.1810 0.10.02= 1.80.5= 322.5 00.54= 40.25= 1.258 = 0.12580.812.5= 2.50.4 0.18100.10.02= 1.40.5=322.5 2.45= 0.3610= 3.14100= 2.50.04=1.50.8= 3.6500= 6.520= 7.85= 0.0081000 0.1256= 720.4= 1.50.5= 10.130= 小数乘法口算练习4 姓名 0.870.781.3281.5710.323.50.20.90.350.6100.050.1370.740.054 12.580.4503.2502.342.637.50.10.450.24.123.50.0190.509.83.924.122.631.2587.50.110.060.90.390.5=2.50.4=103.52=8.20.8=0.20.4=0.224=0.90.52=3.991=40.3=300.1=0.350.2=10.08=4.85=2.010=2.45=1.258=0.21100=3.40.4=7.80.2=2.190.1=100.89=6.80.4=0.80.18=0.724=8.15=0.895=0.10.98=80.52=0.540=0.1258=70.08= 1.870= 0.245= 小数乘法口算练习5 姓名 0.51.1= 0.80.5= 60.12= 1.254= 40.25= 06.81= 0.48=1.80.5= 80.5=2.510=6.32= 0.924= 801.6=6.20.7= 0.40.250.560.4=1.60.8= 6.39= 0.158=7.20.5= 1.70.4=4.20.4=3.90.3= 1.54= 2.54= 0.13 4= 4.21000= 0.450.15= 3.60.1=5.410= 3.2100= 1.20.3 =0.497= 844.2= 10000.756=0.5100= 00.25=3.82= 10.01= 1.258=7.20.9= 1.60.2= 40.4= 0.450.5= 0.20.01= 0.96=9.30.3= 8.5 1.7= 0 .0425= 2.10.3= 2.52= 0.510= 0.68= 2.12=2.810= 0.70.8=0.0420= 5.60.4= 4.70.3=4.52= 小数乘法口算练习6 姓名:_0.020.5= 3.60.3=6.30.7= 5.6100= 0.750.6=0.1258= 4.80.3= 0.862=0.562= 0.364= 0.648=0.79= 3.64= 0.81.1= 7.20.8= 4.63=2.84= 5.23= 12.54=1.640.1= 102.22= 2.45=8.6510= 0.350.6=3.080.01= 4.951000= 6.90.1= 0.40.5=2.40.8= 1.89= 9.60.8=0.1082= 4.950.1= 9.50.6=0.325100= 2.58=0. 560.7=0.1254= 3.280.1= 3.93=7.20.1= 0.010.1= 0.250.4= 1.60.8= 0.82.5= 1.250.8=3.20.4= 01.7=0.22100=5.60.8= 50.24= 4.50.5=3.90.3 16.55= 50.12=240.5= 4.80.5= 44.2=0.842= 50.25=小数乘法口算练习7 姓名 0.180.2=0.168=4.50.02= 87.2=1.230= 0.120.2=7.30.3=3.60.2=7.80.6= 4.50.5=0.130.6=0.960.2= 10.50.4=7.37= 80.125= 0.540.6=0.619=0.568= 0.80.11=7.20.8=5.60.01= 2.3100=0.75100=0.1085= 10.89=7.80.01=5.40.6= 3.155= 70.62=120.5= 5.20.4=12.20.2=5.6100= 0.410.7=0.020.5=7.20.8= 1.40.5= 840.2= 0.750.5= 2.516= 0.1082=1.750.5= 65.07=5.20.3= 1.644=1.5710.323.50.20.90.350.6100.050.1370.740.054 12.580.4503.2502.342.637.50.10.450.24.123.50.01小数乘法口算练习8 姓名 4.122.631.2587.50.110.060.90.390.5=2.50.4=0.4258.20.8=0.20.4=0.224=0.90.2=3.991=40.3=300.1=0.50.2=10.08=4.80.5=2.010=2.45=1.258=0.21100=3.40.4=7.80.5=2.99=1000.8=6.80.4=0.80.1=0.740=8.15=0.80.25=10.98=0.80.5=0.540=0.1258=0.90.350.6100.050.1370.740.054 12.580.4503.2502.342.637.50.10.450.24.123.50.0190.509.83.924.122.631.2587.50.110.060.90.390.5=2.50.4=103.52=小学四年级除法口算(1)姓名：_ 班级:_3.60.1= 3.210= 9.30.3= 0.450.09=40.4=0.450.5=0.20.01=270.1=7.20.9=2.55=150.5= 12=1.80.9=0.450.15=00.25= 10.1= 5.410= 28.6100=844.2= 52.5= 2.40.6=0.363=0.120.03= 2.80.4=8.5 1.7=5.67=1.20.3 =0.490.7= 0.810.9= 5464.840.4840.480.4242=2.42=0.242=0.0242=244=2.44=287=2.87=0.287=2.80.7=280.7=280.07=363=3.63=0.363=3.60.3=360.3=0.360.03=4812=4.812=0.4812=4.81.2=0.480.12=0.480.2=4623=4.623=0.462.3=小学四年级除法口算（2）姓名:_ 班级:_4.62.3=0.460.23=462.3=306=36=0.36=30.6=300.6=0.30.6=82=0.82=80.2=0.80.2=800.2=0.369=4.55=1.310=8.44=25=6.622=300.3=102.5=0.910=73.5=04.3=0.251=1.60.8=0.480.24=180.9=164=0.250.5=5.11.7=02.3=3.51=70.1=1.50.1=2.9