1、.计算(能简算的要简算)1) (3.20.12)0.82) 1.750.250.43) 4.61.752.084) 1.542.083.928.465) 8.65(2.161.65)6) 3.60.11.0257) 0.36(6.14.6)0.8 8) 0.1750.2549) 0.656.40.652.410) 2.51.61.811) 17.245.927.24 12) 7.26.56.52.8 13) 2.50.321.25 14) 1.2511-1.2515) 7.59.97.50.1 16) 7.642.517) 1.50.1258 18) 0.483.50.523.519) 6.1
2、59.45.4 20) 4.50.95.50.921) 1.250.162.522) 32.5-2.51223) 3.86.23.86.224) 12.42.426.5825) 6.83.2580.686.826) 8.51.50.25427) 12.448.50.0428) 0.920.41.30.0129) 3.60.9930) 0.4650.1250.8 31) 0.0749+0.0732) 34.8-3.484.0533) 70.8-6.25-1.7534) 2.610.135) 127.36-27.367.60.136) 0.2540.25437) (17.2-8.10.5)0.00
3、138) 0.1751.25839) 120-2025340) 12.50.7241) 4.80.048-3.260.142) 5.86+1.81.2+4.1443) 9.94.644) 3.61.20.3645) 2.8-4.9+5.2.46) (3.2+0.128)0.8 2) 47) 1.980.180.1148) 0.48(6.1-4.6) 0.8 49) 1.8+1.26.5 50) 2.517.20.4 51) 3.7-0.60.1252) 12.50.72 53) 2.110.1 54) 0.0749+0.0755) 40.2-6.18-13.82 56) 1.60.99 57)
4、 0.75125.4-25.458) 34.8-3.484.5 59) 5.011.94.99 60) 4.53.65.20.3561) 2.50.4+2.50.4 62) 57.6-7.65 63) 4.83.6+7.44.8-4.864) 15.73-3.4-5.7365) 16.39-2.28-2.7266) (10-3.40.25)1567) 4.8(11.03-15.67.5)68) 7.85-3.76-2.2469) 13.735.8+4.213.7370) 4.92.6-(12.78-10.88)71) 3.23.56.86.572) (1.79+1.20.1)0.2573) 4
5、60.05+0.55.474) 12.88(1.8-1.3)75) 3.96.26.26.176) 5.411-5.4 77) 4.2(6.18-3.03) 78) 1.22.5(4.3-2.7)79) 6.93.6-4.840.4 80) 10.716.1-15.110.7 81) 0.813-(6.88+5.22) 82) 52.813.2(4.51.6)83)(200.920.4)1.10.584) 4.73.08-14.5685) 7.25-3.86-2.1486) 6.735.8+4.26.7387) 4.92.6-(12.78-10.88)88) 720.03+0.32.889)
6、5.88(1.8-1.3)90) 1.25162.591) 3.86.23.86.2.92) 12.43.426.5893) 9.17(5.84.20.83)94) 6.83.2580.686.895) 8.31.010.830.196) 77.21743.21797) 0.2517.20.498) 1.250.72 99) 3.7-3.70.9100) 2.41.25 101) 5.729+5.7102) 50.2-5.28-13.72 103) 1.69.9104) 12.8-1.8 0.4 105) 8.7+1.3-8.7+1.3106) 3.86.23.86.2107) 6.840.1
7、+6.840.01108) 0.492.6-(10.78-8.88)109) (2.34+7.54)0.2110) (103-33.621)15六年级小数乘除法计算题练习 一、计算题(30 分) 1、直接写出得数0.45 2.5 0.8 1.25 0.3 3.6 0.3 0.3 10 0.0 0.3 1.4 0.14 4 0.05 7 0.92 0.4 0.2 0.26 0.020.1 1.20.3 0.20.4 8.21.8 10035.22 0.1815= 2.34 2.50.4 0.153.52 12.58 3.60.4= 12.58= 2.45 0.224 3.250 1.470.7=
8、 0.90.52 3.991 9.60.6 = 5.46 3.215100= 0.810= 810 = 10-1.8-7.2= 0.43+3.57= 2.5412=0.90.8= 7.5x-3x = a+3a+7a= 1.05100= 10.5= 0.963= 5.46= 0.16.510= 0.56100= 3.78100= 40.8 = 4.08100= 1.10.2 = .0.60.8 = 30.9= 2.50.4= 500.04= 800.3 = 1.19= 0.165 = 1.782.2 = 2、用竖式计算 0.3961.2= 0.7560.36= 90.753.3= 3.70.01
9、6 = 0.02514= 5.613= 3.0636= 0.040.12 3.842.6 765= 16.90.13= 1.553.9= 46.159= 0. 893.2= 3、脱式计算(能简算的要简算)2.57.14 16.129916.12 7.2899+7.28 4.3500.2 642.640.5 2615.715.724 (1.250.125)8 4.84.80.5 9.5101 8.7 17.4 - 8.7 7.4 12.50.42.58 3.94+34.30.2 2.08(9.62.4)4.8 5.20.90.9 二、解方程: 7.5x3x=18 2.4X=26.4 3x+6x=
10、63.6小数乘除法计算题用竖式计算0.3961.2= 0.7560.36= 15.613= 0.1815= 0.02514= 3.0636= 0.040.12 0.0420.54 5.763 7.1522 90.753.3 3.680.2516.90.13 1.553.9 3.70.016 0.760.32 1.0825 4.80.25 0.1251.4 (保留两位小数) 2.50.7= (保留三位小数) 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)(循环小数的用简便方法,除不尽保留 2位小数):8.20.12 0.80.9 76
11、.45.4 4.73 1.251.23、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+1.54.8100.1 56.59956.5 7.0910.80.87.094.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.50.42.58
12、0.873.16+4.64 9.5101 0.68 (5.2 -3.5) 1.25 0.2518540 40.5 0.81 0.18 4.8 (15 2.4) 6.81+6.8199 4.40.83.40.8四年级下册计算题库(一)小数的加法和减法 1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 5.5+4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 5.48-3.25= .4.8+18.9= 10.3+58.7= 8.03-4.56
13、= 9.03-8.57= 8.25+1.55= 9.43-9.05= 1.75+2.08= 4.28-3.37= 4.13+2.24= 4.17+2.53= 5.07-0.98= 5.67-0.73= 13.18+5.27= 5.16+7.89= 2.小数数位不同的加减法(竖式计算)26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 7.3-2.25= 3.8+3.54= 3.05-2.9= 3.1-2.07= 12.7+6.58= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96= 9.6+4
14、.78= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 62.1-17.07= 1.4-0.405= 3.906+0.66= 43.5-27.34= 15.98-3.9= 75.6-3.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 10.1-0.55= 3.整数与小数的加减法(竖式计算) 10+10.1= 27+8.03= 26+7.98= 13.99+1= 7.88+2 = 28-3.56= 10-0.81= 10-0.36= 20-0.92= 8-7.089= 45-0.45= 3.57+
15、3= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 45.45-45= 10-0.41= 4.小数加减混合运算(递等式计算) 5.03-2.5+0.96 22.8-5.23-9.125 23.66+4.34-3.56 5.6-0.81-1.29 15.9+3.26+4.17 67.2+41.5-71.39 10.75+0.4-9.473 16.23+8.92-7.56 50-28.5-13.45 .13.79-9.653+170.57 1.5+0.68-0.306 72.8-8.6+5.84 20.8-(15.98-3.9) 32.5+(5.07+6.13) 3.
16、52-(4.66-3.82)5.小数加减简便运算(递等式计算) 0.9+1.08+0.92+0.1 5.26+3.43+0.74 5.6+2.7+4.4 20.15+7.62+7.85 51.27-8.66-1.34 48.14-2.43-7.57 18.76-3.47-0.53 5.17-1.8-3.2 70.8-1.25-1.75 4.02-3.5+0.98 4.25-0.83+0.75 23.04-0.8-13.4-6.215.13+4.92-5.13 3.98-1.5+6.02 4.8+1.2-4.8+1.2 30.99-(8.5+15.99) 72.6-(22.6+3.45) 36.
17、06-(5+6.06) 四年级下册计算题库(一)小数的加法和减法 1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 5.5+4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 5.48-3.25= 4.8+18.9= 10.3+58.7= 8.03-4.56= 9.03-8.57= 8.25+1.55= 9.43-9.05= 1.75+2.08= 4.28-3.37= 4.13+2.24= 4.17+2.53= 5.07-0.98= 5.6
18、7-0.73= 13.18+5.27= 5.16+7.89= 2.小数数位不同的加减法(竖式计算) 26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 7.3-2.25= .3.8+3.54= 3.05-2.9= 3.1-2.07= 12.7+6.58= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96= 9.6+4.78= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 62.1-17.07= 1.4-0.405= 3.906+0.66= 43.5-
19、27.34= 15.98-3.9= 75.6-3.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 10.1-0.55= 3.整数与小数的加减法(竖式计算)10+10.1= 27+8.03= 26+7.98= 13.99+1= 7.88+2 = 28-3.56= 10-0.81= 10-0.36= 20-0.92= 8-7.089= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 45.45-45= 10-0.41= 45-0.45= 3.57+3= 4.小数加减混合运算(递等式计算)5.03-2.5+0.96 2
20、2.8-5.23-9.125 23.66+4.34-3.56 5.6-0.81-1.29 15.9+3.26+4.17 67.2+41.5-71.39 10.75+0.4-9.473 16.23+8.92-7.56 50-28.5-13.45 13.79-9.653+170.57 1.5+0.68-0.306 72.8-8.6+5.84 20.8-(15.98-3.9) 32.5+(5.07+6.13)3.52-(4.66-3.82) 5.小数加减简便运算(递等式计算)0.9+1.08+0.92+0.1 5.26+3.43+0.74 5.6+2.7+4.4 20.15+7.62+7.85 51
21、.27-8.66-1.34 48.14-2.43-7.57 18.76-3.47-0.53 .5.17-1.8-3.2 70.8-1.25-1.75 4.02-3.5+0.98 4.25-0.83+0.75 23.04-0.8-13.4-6.2 15.13+4.92-5.13 5.17-1.8-3.3 3.98-1.5+6.02 4.8+1.2-4.8+1.2 30.99-(8.5+15.99) 5.17-1.8-3.472.6-(22.6+3.45) 5.17-1.8-3.5 36.06-(5+6.06)一、解方程或比例。14 12X25 1.250.25 X1.6 5 X3.25417 1.250.25= X 1.6 4x=30% 32X 21X=42 X 21= 324 4x=564X2.541.5 455X=3 65-3X=20 7218X=24 二、能简便计算的就简便计算。1583243 3060152.51.04 7631149 (5441)37107 6143322 (98274)271 4.67(2.980.67)464544 131(2131) 13613713 30(4383) 5391529