1、小数除法计算题一、计算题(30分)1、用竖式计算0.3961.2= 0.7560.36= 15.613=0.1815= 0.02514= 3.0636=0.040.12 3.842.6 5.763 (保留一位小数)7.1522 90.753.3 3.680.2516.90.13 1.553.9 3.70.01613.760.8= 5.20.6 8.41.3 6.40.5 4.480.4 5.25535.44.2 0.0420.54 0.760.32 0.250.046 2.523.4 1.0825 0.120.50.16 4.80.25 0.1251.4(保留两位小数)2.50.7= (保留三
2、位小数) 10.13.3= (商用循环小数)10.7512.5= (用乘法验算) 3.259.04= (用除法验算) 2、脱式计算(能简算的要简算)2.57.14 16.129916.12 5.20.90.97.2899+7.28 4.3500.2 642.640.52615.715.724 (2.275 0.625)0.28 3.94+34.30.2 1.2(9.62.4)4.8 8.91.14.7 2.75.43.9 3.69.85-5.46 8.053.4+7.6 6.584.50.9 2.80.5+1.58324.90.9 4.84.80.5 (1.250.125)84.8100.1
3、56.59956.5 7.0910.80.87.094.85 + 0.35 1.4 8.7 17.4 - 8.7 7.412.50.42.58 0.873.16+4.64 9.5101 0.68 (5.2 -3.5) 1.25 40.5 0.81 0.18 4.8 (15 2.4) 213.0.82576.81+6.8199 0.2518540 4.40.83.40.8 (9.37+937+937+937) 25 42.1.1.1.752.376.3+2.373.7 2.51.250.32 3.810.12.5(3.80.04) 7.69101 3.810.10.2539+0.25 0.125
4、72 460.33+540.33(85.27) 1.25 6.81+6.8199 0.25185406.80.750.5 3.750.1252.75 1.53+23.47.29.599 13.50.98 12.58.8二、解方程:54-X=24 7X=49 126X=4213+A=28.5 2.4X=26.4 7.5x3x=1851.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2三、列式计算1、20减去0.8的差除以4个0.3的和,商是多少?2、一个数的2.6倍加上9,和是35,求这个数。(用方程解) 3、1.2与4的积,减去6.除以5的商,差是多少?4、2.1除以35的商,加上4.与0.45的积,和是多少?5、一个数的3倍加上6与8的积,和是84,求这个数6、4.08除以0.6的商,再乘以5.,积是多少?7、甲、乙两数的积是25.2,甲数是56,乙数是多少?8、把0.47平均分成7份,每份是多少?9、1.25乘4.2减5,差是多少?10、比4.7的1.5倍多3.05的数是多少?0.430.28= 6.450.73= 4.60.6=8.90.05= 3.080.43= 1.526.7=5.2229= 18.723.6= 13.953.1=第 5 页 共 5 页