北师大版数学四年级下册口算练习.docx

1、北师大版数学四年级下册口算练习 0.2 + 0.3 = 1.5 + 0.4 = 5.5 + 4.3 = 2.5 + 3.2 = 0.8 + 0.2 = 0.4 + 0.6 = 2.4 + 3.5 = 4.6 + 5.1 = 3.4 + 2.6 = 3.3 + 2.7 =0.5 + 0.5 = 3.7 + 2.1 = 5.2 + 3.2 = 6.5 + 0.5 = 8.1 + 0.8 = 1.6 + 1.3 = 5.2 + 4.8 = 3.9 + 2.8 = 8.3 + 4.1 = 3.8 + 1.6 = 1.4 + 2.8 = 1.5 + 2.8 = 1.8 + 2.7 = 2.8 + 2.2

2、 = 5.8 + 4.2 = 3.9 + 1.2 = 1.7 + 0.8 = 9.2 + 1.2 = 3.7 + 6.3 = 2.8 + 3.3 = 0.4 + 0.5 = 3.5 + 5.5 = 0.3 + 0.6 = 3.3 + 5.6 = 4.2 + 5.2 = 1.5 + 6.7 = 3.4 + 1.7 = 0.2 + 2.8 = 2.7 + 2.3= 8.3 + 2.3 =1.1 + 4.1 = 3.6 + 2.3 = 5.3 + 0.5 = 1.5 + 6.2 = 0.3 + 2.5 = 3.4 + 1.2 = 6.7 + 2.8 = 0.9 + 7.5 = 3 + 4.5 = 3

3、.5 + 4.2 = 1.2 + 0.8 = 3.4 + 1.9 = 0.8 + 7.1 = 1.5 + 1.8 = 2.7 + 2.4 = 3.5 + 6.4= 2.3 + 1.7 = 0.7 + 1.7 = 3.7 + 2.4 = 4.5 + 2.8 = 0.6 + 0.18 = 0.14 + 0.59 = 0.1 + 0.38= 1.4 + 5.04 = 8.06 + 2.2 = 0.5 + 0.29 = 0.48 + 0.41 = 9.1 + 0.1 = 0.48 + 0.6= 7.2 + 0.01 =0.48 + 1.31 = 0.84 + 0.15 = 2.9 + 3.4 = 0.

4、4 + 0.38 = 0.1 + 0.09 = 2.1 + 1.2 = 0.4 + 5.6 = 8.6 + 1.2 = 3 + 4.5 = 6.7 + 2.8 = 1.5 + 4 = 1.9 + 7.1 = 0.5 + 0.7 = 1.5 + 1.8 = 2 + 8.4 = 8.06 + 6.4= 0.1 + 0.34 = 1.5 + 4.6 = 0.7 + 1.7 = 3.4 + 1.9 = 0.29 0.3 5.1495 0.59 2.1 2.01 7.9 9.6 0.01 0.1 0.315 0.314 15 1.5 4.23 4.32 2.8 0.82 4.05 5.01 4.28 4

5、.3 9.87 9.789 3.25 0.335 1.44 0.59 7.62 6.72 4 + 2.65 = 7.2 + 1.8 = 1.6 + 8.4 = 2.48 + 0.02= 8.4 + 1.2 = 7.25 + 2.75 = 3.36 + 2.64 = 3.9 + 3.9 = 1.3 + 2.85 = 4.78 + 5.22 = 3 + 4.24= 9.63 + 0.37 = 1.25 + 0.05 = 1.45 + 2.05 = 3 + 6.25 = 0.05 + 0.04 = 0.36 + 0.2 = 0.1 + 0.65= 0.17 + 0.23 = 0.15 + 3.15

6、= 0.65 + 0.35 = 0.21 + 0.79 = 0.11 + 0.11 = 1.19 + 0.11= 0.85 + 0.15 =0.28 + 0.62 = 0.2 + 0.35 = 0.32 + 0.35 = 0.17 + 1.07 = 2.16 + 3.17 = 0.88 + 0.22 = 4.05 + 3.25 = 3.45 + 4.55 = 7.5 + 2.8 = 0.7 + 1.38 = 0.13 + 0.87 = 3.6 + 4.8 = 2 + 0.84 = 1.08 + 0.09 = 1.28+ 3.72 = 6.59 + 2.88= 7.21 + 2.84 = 3.6

7、 + 5.4 = 3.46 + 5.44 = 8.4 + 1.6 = 3.28 + 2.72 = 7.46 + 0.04= 3 + 4.2= 1.48 + 1.52 = 2.7 + 1.85 = 1.54 + 4.46 = 7.4 + 8.7 = 8 + 1.9 = 1.21 + 0.79= 0.67 + 0.67 =11 + 0.11 = 2.86 + 2.86 = 4 + 4.7 = 4.56 + 1.8 = 4.5 + 0.5 = 0.75 + 1.25 = 10+ 9.09 = 3.6 + 0.94 = 6.3+ 3.07 = 2.12 + 3.08 = 2.44 + 0.06 = 1

8、+ 0.99 = 1.5 + 0.15= 2.4 + 1.82= 6.3+ 3.07 = 12.4 + 1.24= 1.7 + 2.85 = 0.07 + 0.81 = 9 + 2.7 = 0.04 + 1.8 = 700厘米 =（ ）分米 8分=（ ）元 5030千克 =（ ）吨 14300平方米=（ ）公顷 5角6分=（ ）角 30千克 = （ ）吨46毫米 =（ ）厘米 5毫米 =（ ）米 2毫米 =（ ） 厘米 600克=（ ）千克 40角=（ ）元 30平方分米 =（ ）平方米 60千克=（ ）吨 6厘米4毫米=（ ）厘米 200克=（ ）千克 3角=（ ）元 700克=（ ）千克

9、60平方米毫米=（ ）公顷 120毫米=（ ）米 25分=（ ）元 3厘米 =（ ）分米 80厘米=（ ）米 720克=（ ）千克 4954克 = （ ）千克1米60厘米=（ ）米 2米4分=（ ）米 9千克800克 =（ ）千克 30米15厘米=（ ）米 10元 6角=（ ）元 7千克50克=（ ）千克 3千米400米=（ ）千米 8.04米=（ ）米（ ）厘米 107克=（ ）千克 5.864千克=（ ）千克（ ）克 7.85千克=（ ）千克（ ）克 700厘米 =（ ）分米 8分=（ ） 5030千克 =（ ）吨 14300平方米=（ ）公顷 5角6分=（ ）角 30千克 = （ ）吨4

10、6毫米 =（ ）厘米 5毫米 =（ ）米 2毫米 =（ ）厘米 600克=（ ）千克 40角=（ ）元 30平方分米 =（ ）平方米 60千克=（ ）吨 6厘米4毫米=（ ）厘米 200克=（ ）千克 3角=（ ）元 700克=（ ）千克 60平方米毫米=（ ）公顷 2.850.25 = 60.4 = 103.65 = 5.854.85 = 4.44 = 10.56.5 = 6.845.84 = 20.89 = 2.4 0.38 = 82.6 = 31.8 = 9.157 = 3.21.8 = 9.53.5 = 9.47 = 6.352.6 = 2.61.7 = 3.92.8 = 98.07

11、= 72.4 = 101.8 = 5.84.9 = 53.65 = 10.98 = 60.2 = 4.481.38 = 6.35.4 = 6.921.82 = 9.42.8 = 9.258.15 = 9.84.8 = 7.253.85 = 7.57.05 = 10.08 = 5.13.9 = 81.75 = 63.36 = 32.4 = 40.75 = 16.50 =62.34 = 5.240.24 = 2.892 = 9.53.5 = 5.215.19 = 4.663.15 = 4.21.9 = 0.40.17 = 7.56.8 = 8.22.6 = 8.32.7 = 8.86.52 = 2

12、.81.9 = 7.824.02 = 5.42.7 = 7.385.04 = 73.2 = 4.13.2 = 3.11.4 = 4.750.5 = ( ) + 0.6 = 1.4 2.3+ ( ) = 5.7 ( )+ 1.2 = 4.3 1.4 +( ) = 2.1 12.5 + ( ) =13 0.06 + ( ) =0.46 ( ) + 2.8 = 3 0.5+ ( ) = 4.1 0.9 + ( ) = 2.5 ( )+ 1.12 = 3.95 8.8+ ( ) = 10 ( ) + 2.2 = 4.1 ( ) + 0.4 = 0.8 ( ) + 0.5= 9.5 0.5+ ( )=

13、1.3 0.4 + ( ) = 1.4 1.6+ ( ) = 2.2 2.3 + ( )= 3.5 ( ) + 2.7 = 6 0.8 +( )= 1.5 ( ) + 1.8 = 21.8 0.36 +( ) = 1 ( )+ 10 = 15.4 1.25 + ( ) = 3.5 5.3( ) = 2.1 ( )1.21 = 0.68 3.98( ) = 1.5 3.65( ) = 2.56 ( )2= 0.9 ( )0.2 = 0.21 ( )1.35 = 1.85 3.8( ) = 2.9 2.4( )= 1.9 4.7( )= 2.3 3.8( ) = 1.9 ( )2.01 = 6.3

14、1 5.3( )= 2.1 3.98( )= 1.5 ( )2 = 0.9 ( )1.21 = 0.68 ( )2= 0.9 3.65( ) = 2.56 ( )0.2 = 0.21 ( )1.35 =1.85 3.8( ) =2.9 2.4( ) = 1.9 3.85( )=2.32 8.32( ) = 5.04 0.11 = 0.011 = 0.25= 0.025 = 0.68 = 0.068 = 0.2410 = 2.0510= 0.86= 0.052= 4.52 = 1.84= 6.1510= 0.3210 = 2.6100= 0.97 = 3.0510 = 0.67 = 2.63 =

15、 2.54 = 0.067 = 1.43 = 0.56100 = 1.53 = 9.05100 = 2.41 = 3.56= 0.25 = 1.533 = 0.128 = 0.019 = 0.14 = 1.53 = 1.65 = 2.67 = 2.53 = 0.313 = 0.58 = 2.32 = 4.78=0.154 = 3.42 = 5.24 = 0.039 = 0.136= 12.36 = 1.258 = 0.53 = 0.186 = 3.124 = 2.72 = 1.550 = 0.371 = 2.930 = 1.870 = 7.52 = 4.520= 1.432 = 0.415 =

16、 0.560 = 7.073 = 1.65 = 3.80.2 = 1.840.1 = 3.20.2 = 0.70.5 = 1.25 = 2.10.9 = 0.50.4 = 4.70 =0.20.9 = 0.2540= 76.20.1 = 0.260 = 4.10.01 = 0.001100 = 4.83 = 60.13 = 4.50.2 = 1.20.6 = 0.420.2 = 0.154 = 2.027 = 1.40.3 = 0.151 = 1.50.01 = 0.1450= 2.025 = 600.5 = 4.30.2 = 1.72.3 = 2.73.6 = 0.364.3 = 0.172

17、.8 = 13.56.4 = 1.11.1 = 1.097.8 = 25.50.7 = 1.21.85 = 2.150.04 = 6.350.9 = 5.0428 = 3.820.45 = 0.966.9 = 0.321.03 = 4.83 = 590.16= 2.80.85 = 140.18 = 0.861.4 = 6.5+5 = 1.43 = 4.2+5.8 = 1.90.7 = 1.20.6 = 2.63 = 2.53 = 6.52 = 12.6+1.4 = 0.650.45 =11.99 = 8.646.2= 0.050.2 = 0.39+0.15 = 4.70.8 = 0.0155=

18、 8.36.7 = 7.80.5 = 0.125 = 7.80.6 = 3.6+0.4 = 2.54 = 2.90.5 = 1.20.8 = 7.40.9 = 9.90.8 = 1.080.2= 0.119 = 40.18 = 40.18 = 5.680.66 = 7.80.6 = 6.53 = 5.0510 = 0.160.5 = 1.885 = 20.62 = 10.04 = 4.30.3 = 0.042.5 =8.53.7= 7.25.8= 4.74 = 7.4520 = 12.50.08 = 12.50.4= 6.20.7 = 0.31.5 = 10.9 = 0.270.03 = 3.

19、4100 = 0.86+0.04 = 0.90.08 = 0.250.4 = 8.53.3 = 150.6 = 12.6100= 0.51.2 = 0.50.08 = 4.11.9 = 0.31.5 = 2.140.9 = 1.80.3= 1.892.13 = 8.452.5 = 0.90.08 = 0.40.9 = 80.04 = 3.72 = 20.15 =0.51.2= 0.67.6= 0.9230 = 2019.7 = 0.340.2 = 0.090.1= 3.50.2 = 53.810 = 0.250.75 = 0.7210 = 2.370.9 = 4.852 = 3.66 = 39

20、.69.82 = 8.071000 = 11.288 = 0.67.45= 1800.4 = 10.33 = 3.440.1 = 70.46 = 2.730 = 59.519.6 = 0.05100 = 100.56.5 = 400.05 = 700.07 = 1.280.18 = 400.09 = 10021.5 =8000.5= 601.3= 700.08 = 0.5105 = 10.50.1 = 8.862.04= 30.0420 = 1.60.05 = 0.80.9 = 1012.2 = 1005.27 = 0.920 = 0.9+13 = 9.42= 4000.01 = 40.98

21、= 0.4320= 2.316.9 = 0.880.12 = 10.25 = 8.962.04 = 9.098.9 = 0.432 = 2.31+6.9 = 0.88+0.02 = 1005.27 = 30.0420 = 1.60.05 = 2.50.04 = 1012.2 =40.98= 0.290= 13+0.9 = 0.430.2 = 4000.01 = 10.25= 0.40.8 = 250.2 = 1.30.87 = 9.99 = 4000.01 = 108.24 = 1.3+0.95 = 0.186= 80.11 = 1.20.7 = 0.0710= 10.27 = 54.99 =

22、 1.560.96 = 0.350.3 = 3.45100 = 1.32.96 = 3.230 = 0.350.5 = 101.84 = 0.0284 = 0.0810 = 42.919.7 = 0.10.081 =6.563.44= 0.18500= 1.550 = 3.851.98 = 3.890.27 = 1.70.9= 2.3710 = 4.50.02 = 0.83.32 = 1.150.01 = 0.060.4 = 1.0710 = 0.320.8 = 0.480.2= 4030.5 = 1.010.1 = 2.40.8= 7.5300 = 32.86.9 = 91.6 = 0.91

23、+ 8.9+ 0.09 0.4230.5 0.91.250.8 9.71.320.68 2.5364 6.7893.3 1.55040 41.850.15 拖式计算： 251.70.42 2.825.32.70.18 1250.050.08 4.14.110 （1.150.15）8 7.52247.526 4.55.50.42 18.90.920 1.2542.50.8 9.831.56.171.5 27.04（7.041.9） 0.125322.5 a5写成（ ） ab9写成（ ） 10b写成（ ） bc2d写成（ ） t6写成（ ） b1写成（ ） bt写成（ ） b62x写成（ ） 8x

24、6d写成（ ） bc2d写成（ ） bcd写成（ ） bcd写成（ ） ab = a7 = 0.7a = 60与c的和 比x的2.5倍少3 x+x+x = 3ax = 6.5与x的积加上5 1.5减去x的3倍的差 7乘X的积与6的和 x的4倍除以2 x的5倍加上3X除以5的商加上9 3.5与 x的积减去5 1.5减去x的差的3倍 X的5倍是 0.3乘x的积是 a的5倍减去4.8的差 t与3的和 20减去a的差 b除以12的商 x小9的数 4个x的和 2个x相乘的积 X乘0.1的积是 x减去3的差是 比b少1.2的数是 4x + 3x = 15aa = 7a 0.4a = a + a = y 0

25、.8y = 3y + 4.7y = 7.8x5x = 19x 2x = 9.5b + 0.5b = 6.2x x =b0.2b = a + 8a = 7.5b + 2.4b = 5x + 0.5x = 8.1 + 0.8 = x + 42 = 100 x5 = 12 3x3 = 15 35x2 = 70 35+ x = 68.5 2x 7 = 4 9x8 =37 7x4 = 28 5.8x = 3 3x+ 3=15 353x = 11 4723x =1 35+ x = 68.5 3x+ 3=15 353x = 11 3x 5 = 14 9010x =10 1605x = 8 243x = 3 4x 3=24 7x3 = 21 16x14 =18 8x+ 7 = 55 16x30=15 4.5x = 1.5 410x = 82 11x7 =26 9.46x =7.2 8 6x5 = 6 30.6x=18.7 4x = 36 2y7 =91 8m 2 = 24 3x3.9=5.1 2.5x = 10