北師大版四年級數(shù)學下冊小數(shù)加減法習題專項53

1、二、口算。2-1.5 =2.8+6.5 =5+1.34 =95.9-20.1 =30.0+42.2 =85.96三、豎式。4.26.23.8 5.9 1.7 8.51957.666.26 4.15 57.532.6595.338.889 6.1940.81一、照樣子，填一填。9.56 = 9+0.5+0.066.75 =+4.03 =+9.157 =+22.4 =49.84.978.72.37.86.6四、計算51.293.489.79 (3.6 1.29)5.48 6.95 4.66一、照樣子，填一填。5.76 = 5+0.7+0.062.33 =+1.05 =+3.921 =+二、口算。9

2、.2 5.2=2+2.1=5.3+ 2.34 =78.510.4=50.3+40.4=95.9813.1 =7.8 2.76.1 1.18.3 1.7342.4 8.86877.557.887.3 1.92 91.42 2.03 2.729.575.5693.7 3.844 5.62 2.6、豎式O四、計算5.01 3.56 1.369.66 (3.04 1.81)7.59 6.05 0.72一、照樣子，填一填。3.56 = 3+0.5+0.063.17 =+14.02 =+ 8.592 =+ 二、口算。3.1 1.6 =87.6-13.0 =三、豎式。3.7 8.92.6+1.9 =43.4

3、+25.5 =5.4+2.33 =59.68-31.3 =24.1 8.479.9 0.57.4 1.9591 3.764.99 36.839.02 2.586.6 0.689.24 7.116.86 16 5.533.2 7.3四、計算7.45 1.94 5.289.67 (3.62 1.08)9.41 7.22 4.97一、照樣子，填一填。8.73 = 8+0.7+0.3一、照樣子，填一填。3.54 = 3+0.5+0.041.65 =+7.07 =+12.797 =+二、口算。8.4 6.1 =99.8 40.0 =5.45.323.3+11.5=69.77-32.2 =7.52.871

4、.7 0.1 4.31 2.557.7+1.8=3.1 + 4.43 =759.049.925.95.98 46.77 1.95 2.322.115.1195.43.122 5.77 7.4四、計算4.577.02 8.258 = 二、口算。9.4 3.5 =2.2+1.2 =3+4.1 =56.710.2 =34.3+24.4 =57.69-11.2=三、豎式。5.85.64.750.4 4.1 2.6 1.98 7.17649.685.688.3 8.15 26.72 0.11 0.277.517.2965.7 9.633 0.71 8.9四、計算5.75 4.24 6.989.8 (3.

5、72 1.86)9.24 6.68 4.28一、照樣子，填一填。6.48 = 6+0.4+0.087.33 =+3.08 =+12.229 =+二、口算。1.21.1=6.8+1.7=2.1+ 3.3 =78.9-23.2=54.0+24.5=86.78-52.1 =8.17.98.791.31.4 2.6 6.53 7.65861.995.966.27.77 15.85 1.95 4.522.596.8869.63.741 4.87 8.2四、計算9.49 2.35 7.078.65 (3.93 1.21)5.31 9.77 1.03一、照樣子，填一填。4.56 = 4+0.5+0.0614

6、.43 =+12.06 =+4.398 =+二、口算。4.5-2.2=8.2+1=1.2+ 3.44 =95.7-12.2=54.2+35.3=99.76-34.3 =9.71.25.4 3.13.6 5.3252.7 6.17568.957.069.2 9.98 18.28 3.03 0.399.455.7867.6 6.454 1.65 2.4、豎式O四、計算6.78 3.84 4.178.55 (3.76 0.72)3.01 8.15 3.63一、照樣子，填一填。9.26 = 9+0.2+0.06_15.88 = 1.09 =1.924 = 二、口算。4.7 3.2 =7.7+1.6 =

7、2.3+3.34 =76.5-25.2 =10.0+ 15.2=99.78-20.1 =三、豎式。8.68.77.555.5 9.4 1.7 8.32 1.18553.326.485.2 6.95 49.23 2.57 0.691.127.0979.4 2.823 3.65 7.3四、計算8.21 3.93 3.827.98 (3.44 1.67)6.34 7.59 4.96一、照樣子，填一填。6.13 = 6+0.1 + 0.037.1 1.91 0.157.69 (5.52 1.99)4.5 8.59 4.5411.98=+_ 2.05=+9.933=+_ 二、口算。2.31.6 =55.

8、5-35.3 =1.2 + 7.7=1.44.3+24.1 =1 + 3.33 =78.56三、豎式。5.7 9.77.3 1.64.9 2.7687 4.198.45 45.597.120.2364.34 6.976.54 282.7433.2 =93.89.115.14.96.47.9四、計算一、照樣子，填一填。5.82 = 7+0.8+0.026.51 4.62 7.778.8 (4.37 0.14)1.69 5.29 5.28二、口算。5.4 3.1 =69.914.1 =三、豎式。4.5 8.91.8+1=5.3+2 =54.4+34.4 =98.658.6 2.82.2 4.488

9、85.097.53 8.56 90.272.7185.747.336 5.0825.4911.77 =+13.09 =+6.837 =+43.1 =15.91.347.54.12.22.5四、計算一、照樣子，填一填。5.69 = 5+0.9+0.099.73 4.84 0.288.98 (4.29 0.94)2.77 5.58 5.875.35 = 15.08 =_ 12.398 =_ _ 二、口算。3.2-1 =77.9 41.42.7+4.7=5.4+4.14 =10.4+41.3=86.89三、豎式。6.6 9.28.4 2.82.5 8.8479 8.932.33 29.559.19

10、3.7422.23 5.258.6249 0.3142.2 =61.94.577.50.29.63.1四、計算一、照樣子，填一填。4.58 = 4+0.5+0.12_10.95 = 4.06 =8.419 = 二、口算。4.3 4.2 =6.3 + 2.6 =2.1 + 3.24 =67.9 23.1 =40.0+45.2=59.85-35.0 =三、豎式。4.16.99.255.7 4.8 3.1 3.29 1.98734.615.078.6 4.69 74.45 1.03 1.999.837.3699.2 4.631 3.06 5.6四、計算6.57=+_ 10.01=+8.925=+ _

11、二、口算。2.81.9 =7.9+1.2 =1.1 + 3.01 =56.8 33.1 =20.4+31.3=69.67-13.2 =三、豎式。3.55.47.417.5 3.7 1.6 2.74 7.23966.089.729.4 3.85 22.89 2.04 4.950.245.2363.5 8.954 5.87 3.6四、計算9.34 2.71 7.527.38 (4.38 0.38)8.26 6.342.49一、照樣子，填一填。2.33 = 2+0.3+0.035.67 =+1.01 =+13.939 =+、口算。7.4 6.6 =65.8-22.3 =三、豎式。6.4 8.83.7

12、 + 4.4 =40.1 + 14.5 =4.3+1.04 =59.56-55.0 =24.5 3.439.3 4.86.62.997 8.716.83 10.779.34 4.626.5 2.121.19 2.879.18 39 4.564.6 1.5四、計算8.6 4.45 7.188.05 (4.73 0.53)8.65 8.13 2.86二、口算。9.6 9.4 =78.7 21.4 =3.1 +3.9 =20.3+35.2 =1.2+ 1.4 =69.56三、豎式。8.5 7.26.8 3.14.1 1.4984 0.486.33 27.337.78 0.6997.32 7.128.

13、9938 0.08一、照樣子，填一填。9.77 = 9+0.7+0.076.16 =+15.05 =+3.682 =+30.1 =39.64.365.62.55.12.9四、計算6.72 3.64 4.518.5 (4.79 1.39)5.72 5.61 3.27一、照樣子，填一填。2.53 = 2+0.5+0.039.15 2.96 8.998.81 (3.27 0.76)9.44 5.45 2.114.78 =+5.01 =+15.684 =+二、口算。8.5 4.6 =78.8-45.3 =8.8+1.2 =5+1.11 =34.3+41.3 =65.98-44.2 =3.68.58.9

14、0.95.49.8263.56.75633.636.576.92.16 18.62 0.68 0.839.786.9871.22.213 1.17 4.3四、計算一、照樣子，填一填。9.24 = 9+0.2+0.048.13 =+5.06 =+ 9.188 =+ 二、口算。2.21.1 =97.712.0 =三、豎式。9.3 3.78.6+1.4 =12.0+43.0 =3.2+2.43 =87.57：-43.1 =30.4 1.717.1 3.47.5 3.72511.849.298.5 4.39 70.64 4.68 4.580.056.6169.4 4.684 5.22 1.9四、計算1

15、1.31 =+13.07 =+14.269 =+二、口算。3.21.2 =56.9 30.4 =6.3 + 3.4=5.2+3.43 =2.82.19.85.243.23.8 5.78 3.2641.0+24.1=59.88 50.3 =746.985.076.19.83 65.49 2.65 4.238.375.4793.24.874 5.11 5.5四、計算5.42 4.23 3.918.98 (4.28 1.91)6.79 5.44 1.93一、照樣子，填一填。6.23 = 6+0.2+0.031.64 =+10.02 =+8.447 =+二、口算。9.3 5.6 =6.6 + 3.2 =5.2+3.03 =88.6 32.1 =21.1 + 22.5 =58.85-11.4=三、豎式。3.88.15.216.5 9.72.1 8.21 5.45711.028.546.41.34 80.81 2.82 2.585.228.2861.59.831 3.27 5.2四、計算。9.12 1.28 8.148.61 (3.46 1.11)2.52 9.14 5.46一、照樣子，填一填。9.99 =