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1、
五年級(jí)數(shù)學(xué)上
姓名:
一.用豎式計(jì)算。
15.624= 0.13815= 1.3527= 0.41632=
2.6880.56= 10.62525= 0.3750.025= 0.160.25=
12645= 150.06= 100.004= 2.77.5=
25.60.032=
2、 56.2867= 10575= 6.7515=
22.44= 1.812= 6.70.3= 2.46.2=
0.560.04= 3.74.6= 0.290.07= 6.58.4=
1.823= 0.370.4= 1.0625= 70.86=
0.60.86= 270.
3、43= 4.80.25= 1.5105=
二.口算。
0. 825= 1.258= 0.254= 100.5= 10000.8= 2340.1=
4560.001= 48= 612= 315= 300.9= 3.2100=
三.簡便算法。
2.326.5+7.686.5 6.3452.54+6.456.345+6.345
640.125 1.25640.125
4、 250.3212.5 6.80.5
28.60.5 537.55 416.2425 438.4125 4.540.5
4200.25 360.5 438.95 3.60.25 0.481.25 96000125
2.40.125 7.22.5 3781.25 2.5104
五年級(jí)小數(shù)乘除法計(jì)算題復(fù)習(xí)
一、計(jì)算題(30分)
1、直接寫出得數(shù)。
5、
0.452.5= 0.81.25= 0.33.6= 0.30.3= 100.07= 0.31.4= 0.057= 0.920.4= 0.20.26= 0.144= 0.020.1= 1.20.3= 0.20.4= 8.2+1.8= 100-35.22= 2.34=
2.50.4= 2.45= 0.224= 3.250=
0.9-0.52= 3.991= 03.52= 12.58=
810 = 10-1.8-7.2= 0.43+3.57= 2.5412=
0.90.8= 7.5x-3x= a+3a+
6、7a== 1.05100= 10.5= 0.963= 1.470.7= 5.46= 0.16.510= 0.56100= 3.78100= 3.215100= 0.810= 4.08100= 1.10.2= 0.60.8=
30.9= 2.50.4= 3.60.4= 40.8=
12.58= 500.04= 800.3 = 1.19=
0.165 ﹦ 1.78+2.2 = 9.60.6 = 1.20.5-0.4 =
0.70.01 = 2.50.4 = 12-3.9= 1.2581.2
7、5 =
6.60.66 = 5.370+4.63 = 3.9+2.03= 4.23.5= 1.6+2.40.3 = 2.14-0.9= 27+456+73= 0.30.3=
7.2+2.8= 0.90.01= 120.3= 2.870.7=
134= 0.960.3= 1.50.4= 70.25=2.50.70.8= 8-2.5= 161.6= 5.61.01=
8(2.5+0.25)= 8.40.2= 0.36+0.64= 64.3216=
4.20.1= 72
8、.80.8= 8.44.2=
13.8+9.9= 2.42.5= 0.050.8= 2.56-0.37= 1.250.80.5= 122.5= 1.233= 3.21.6=
3.5+3.53= 19.62= 8.82.2= 0.754=
(1.5+0.25)4= 0.50.8= 1.60.2= 2.80.3 =
0.90.15= 1.80.4= 5.50.55=0.08100= 7.20.3= 1.45= 2.84= 19.64= 22.54=
2、用豎式計(jì)算
9、0.3961.2= 0.7560.36= 15.613= 0.1815=
0.040.12= 3.842.6≈ 5.763= 0.02514= (保留一位小數(shù))
7.1522= 90.753.3= 3.680.25 = 3.0636=
16.90.13= 1.553.9= 3.70.016= 13.760.8=
6.40.5 4.480.4 5.255 5.20.6
35.44.2 0.0420.54 0.760.32 8.41.3
10、
0.250.046 2.523.4 1.0825 0.120.50.16=
4.80.25= 0.1251.4≈ (保留兩位小數(shù))2.50.7=(保留三位小數(shù))
10.13.3= (商用循環(huán)小數(shù))10.7512.5= (用乘法驗(yàn)算)
3.259.04= (用除法驗(yàn)算)
3、脫式計(jì)算(能簡算的要簡算)
2.57.14 16.1299+16.12 5.20.9+0.9
7.2899+7.28 4.3500.2 64-2.640.5 2615.7+15.724
(2.275 +0.625)0.28
11、 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+1.58
32+4.9-0.9 4.8-4.80.5 (1.25-0.125)8
4.8100.1 56.599+56.5 7.0910.8-0.87.09
4.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4
12、
12.50.42.58 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) 2.13.0.8257
6.81+6.8199 0.2518540 4.40.8-3.40.8
(9.37+9.37+9.37+9.37) 2.5 4.2.1.+1.1.75
2.376.3+2.373.7 2.51.250.32 3.810.1
2.5(3.80.04)
13、 7.69101 3.810.1
0.2539+0.25 0.12572 460.33+540.33
(85.27) 1.25 6.81+6.8199 0.2518540
6.80.750.5 3.750.125–2.75 1.53+23.47.2
9.599 13.50.98 12.58.8
二、解方程:
54-X=24 7X=49 126X=42
13+A=28.5 2.4X=26.4 7.5x-3
14、x=18
51.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2
三、列式計(jì)算
1、20減去0.8的差除以4個(gè)0.3的和,商是多少?
2、一個(gè)數(shù)的2.6倍加上9,和是35,求這個(gè)數(shù)。(用方程解)
3、1.2與4的積,減去6.除以5的商,差是多少?
4、2.1除以35的商,加上4.與0.45的積,和是多少?
5、一個(gè)數(shù)的3倍加上6與8的積,和是84,求這個(gè)數(shù).
6、4.08除以0.6的商,再乘以5.,積是多少?
7、甲、乙兩數(shù)的積是25.2,甲數(shù)是56,乙數(shù)是多少?
8、把0.47平均
15、分成7份,每份是多少?
9、1.25乘4.2減5,差是多少?
10、比4.7的1.5倍多3.05的數(shù)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=
3、脫式計(jì)算(能簡算的要簡算)
2.57.14 16.1299+16.12 5.20.9+0.9
7.2899+7.28
16、 4.3500.2 64-2.640.5
2615.7+15.724 (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+1.58