五年級上冊數(shù)學補充習題答案(20210121004227)

1、五年級上冊數(shù)學補充習題P1 1.正數(shù)+24+21負數(shù)-7-1-1022.海拔-155米 海拔2189米 3,略P21：-1-400南60+ 3-8甲2:P3 3:正數(shù)+ 2400+ 450+ 240010413988-+ 100+ 450+120800100330820負數(shù)-883161208208004:5:P4 1：3235說明橙汁的凈含量最多為圖一 5X 3=15平方厘米35-2505克最少為495圖二6X2=12平方厘米克。2:略 3:108X 18-9=216棵P51 ： 圖 16X4 + 2=32 圖二 5X8+2=20 圖三 8X6 + 2=242: 略3: 960+(10X6+

2、2)=960+30=32 千克4: 60 X 15-2=450 平方米 =45000 平方分米45000 -30=1500 棵P61 ：4 360 30 24 62:圖一 30X20=600 圖二 40X 30 + 2=600P73:30X 20 X8=48004:40X25=1000 平方分米=10 平方米 450 X 10=4500 夠5: 圖 16X8+2=64圖二18X6-2=646:( 8+6)X 6-2=14 X 6-2= 42P81： 14 54 2: (15+5)X72=20X7攵=70 圖二 (12+6)>8妥=18X8攵=72 3: 略 4:8 5 20P9 1 ：

3、4X1 2=22: 83: ( 72+96)M02=168X40+2=3360 3360 登80=12 4: ( 58-10 M0攵=48X 10攵=240P101 : 平方米 公頃 公頃 平方米 2:200005500000160 1000001003: >><><=4:200X200=40000 平方米=4 公頃5:150 歹2=10800 有P116:3 公頃=30000 平方米 30000 + 600=507: 2000 + 4=500500 X 500=250000 平方米=25 公頃8: :( 300+500 ) X 100 -2 =800 X 100

4、 -2 =40000 平方米=4 公頃 7000 X 4=28000 沒有9: 種棉花 42 X 20=840 種大豆 (68-42 ) X 20 + 2=26 X 20 + 2=260P121: 公頃 平方千米 平方米 平方厘米 平方千米 (6)千米2: 200047007000000660000003: >><< < 4:36004=900900X900=810000 平方米=81 公頃 沒有P131 ：圖- 11 >7=77圖二 ( 17+25 ) X20 攵 =42 >202=420 圖三 6 g2=242: 15X12=1803:100X60

5、=600050X (80-60 ) =50X20=10006000+1000=7000P141 :圖一 12 9=54圖二 15 鄧=120圖三 (15+30 ) X20+2=45 X20 攵=4502:8X3+8X2 妥=24+8=32P15 3: ( 30-2) X15=28X 15=420420 >20=84004:(60+40 ) X30攵=100X30+2=150080 必0+2=1200 1500+1200=2700P16 1 : 1215952: (1) 18P171:(1)60048(2) 1(3) 45:8X6 攵=2448(3) 3410(4)2442: 20 X30

6、攵=300平方米300 >500=150000 克= 150 千克P181 :80100105 2: 略 3:(1) 2160000 70 3003: 90-15X2=12 450 4500000 54P23 (3)5.6.30.04(1) 20.03(3) 2.0030.6米(4) 6 5 65(5)0.78 0.7820.302.0309.6米30.022.3007.略30.20(2) 200.3300.2(4) 0.0323.0023.0203.200P241：402080.030.05120.22.31805000.042:2.70-2.75.23-5.23000.80沒有5.4

7、07-5.40700.014沒有(1)1010 (2)50.7020.14- 0.1403:0.30.030.030.5065.0650.6P194:9 公頃=90000平方米 90000 >0=450000 千克=450 噸20 X40=400(10+10+20 ) X20 妥=40X20 妥=400 800+400=12006:4 16 8P201：4/100.445/1000.458/1000.0888/1000.882: 0.6 0.050.080.750.680.953 :略 4 : 0.4 0.040.004 0.0050.0350.235P21 5.一位小數(shù)：0.7 0.3

8、0.4兩位小數(shù)：0.34 0.04 0.10三位小數(shù):0.300 0.3346.400x100=40000平方米=4公頃4x12000=48000 尾7. 20平方厘米8.略P221.0.20.71.42.50.020.070.140.252.略 3.2個102 個 0.012 個 0.12 個 0.0012 個 1 4.4:0.8504.0003.96010.5006.4000.0500.70012.0009.0205:0.70.0503.0904.20P256.0.506.601.053.2 07.9.512 10.58.(60+40X( 30至=100X15=1500平方厘米P261.大

9、小不變:3.4 0.09 5.0 303.03大小變 了： 76 100 8022. 0.62 >0.52 0.5 > 0.053. < < <4. < >P275：(1)0.090.080.07 (2) 0.910.920.93 (3) 0.31 0.320.33以上答案不唯一4<4.6<546 >45.69 >458<8.001 <971 >70.07 >707:(1)冬冬高丁丁重 8:馬寧第一李明第二林鳴第三P28-29 :8.17 8.096647.750.9850.9967.89830.7701

10、6.91962:650000-65 萬65000-6.5萬60500-6.05萬600500-60.05萬605000-60.5 萬3:21.72179.440075.4 4.007544:2.781531.88934 0.892195: 224711581455479479<1158<1455<2247P301：2:保留整數(shù)保留一位小數(shù)保留兩位小數(shù)2.915232.92.929.97361010.09.971.039611.01.04個百分3: ( 1) 10 209(2) 0.13.450.0(3) 7.430.302.264:="P316:行 星名稱平均距離/

11、千米平均距離/億千米平均距離/億千米（保留兩位小數(shù)）5:大洋面積面積/平方千米面積/萬平方千米面積/萬平方千米（保留兩位小數(shù)）水星579100000.57910.586太平洋印度洋17868000076174000178687617.417868.007617.4 0金星地球1082100001496000001.08211.4961.081.50火星2279400002.27942.28大西洋916550009165.59165.50木星7783300007.78337.78北冰洋147880001478.81478.80土星142940000014.29414.297:9.910.19.9

12、910.01天王星287099000028.709928.71海王星449697000044.969744.97P32 1 :0.30.06 2.492: 0.41.43: (1) 十分 個 1045 1 千一十分之一千分之一P334：5.046.43.80.95: <>7: 王師傅快李師傅慢8:表格填4 13P341 ：4.5 0.8 1.65 0.0062: 略3:3.34:2.63.40.070.150.23 0.390.01145><=6:0.0560.027.0902 李勇胡佳明張小松王軍2.923.203.2保留整數(shù)保留一位小數(shù)保留兩位小數(shù)10.578411

13、10.610.5819.98992020.019.995:65.4365.421.9421.914.57814.660.442260.4P356: =*=*7： 420075.59608: 1.493.625.111.53.65.19:3.853.863.873.883.893.903.913.923.933.94 共 10 個P361 ： 8.91.40.682.60.22:20.94.733.315.283: 4.5+10.62= 15.12 10.62-8.45=2.174:0.24+0.35+0.41=1P37 1 ： 3.69.5 4.2 5.9 0.4 0.42: 2.063.12

14、3: 1.240.894.14:12.36.49=5.815: 1.50.350.45=0.7P381：0.230.751.330.770.392:55.774.561.053:40.821.813.524:(1)0.96加數(shù)21.48.461.035.24加數(shù)5.51.060.294.76和26.99.521.3210被減數(shù)6.4897.211減數(shù)4.322.253.854.7差2.166.753.356.3P39 5: 15.8-3.5=12.3 50-9.6-15.8=24.66:50+408.8=81.27:小帆小月P401. 4.1 0.609.01.2 0.230.62. 12.8

15、86.2111.803.11.641.0854.余額從上往下依次:636.30 603.70 4183.70 4033.404045.90 3994.603981.97合計：3592.50367.33P41 5. (1)0.21 0.321 0.4321 0.987654321(2)1.68 2.568 3.4568 5.2345686. (1) 1.54-1.46=0.08 米 第一輛高,0.08 米(2) 5.27-4.18=1.09 米第一輛長，長 1.09 米7. 3.16+0.24-0.19=3.21 米P42-431. 6.0 0.21 1.461.0 0.32 0.82. 14.

16、334.410.493. 4.57 3.11 8.12 6.666.00 4.544.100-9.28-29.65=61.075. (5.1-1.49)-1.49=2.12 億平方千米6.2.45+6.25+2.45=11.15 元不夠7.5.3+10.8+33.9= 50 元8.合計：37.2元 找零：12.8元P44 1.1.8 0.5 547.2 0.6 2002.68 6.8 15.0 1.503.4800 4800 48 48 4.84. 8.2 86.8 27.65.22 56 5255.2.4x48=115.2 米P456. 75.6x12=907.21000元夠7. 27x30

17、=810千瓦？0寸 810x0.52=421.2 元8. (1)3.2+3x2.56=10.88元(2)20-4x4.8=0.8 元P46 1 :80110.240.313000.51.290.0070.46X10512.90.074.6X100501290.746X1000500129074602:100100010001003:10010004: 811230206302P476：12.0968136.347 : 2.04>10=20.42.04 30 = 61.28:0.72 >100=729:(1) 505=10 10 >4.8=48P481 : 9120.2 0.9

18、0.12 0.022: 1.3 0.25 1.033 : 1.4 2.4P501：600.0949000.769101.80.50.082:X 10+ 10X 100- 100X 1000W003:1.50.72.60.854 :> > =4:21 -6=3.5(24.2+16.4)式=40.6式=5.8(24.2+16.4)勺4 =40.6 勺4=2.94.7 彳=32.911.6 X5及=296:5:84.56 47=3.02P515：7:108+ (30X3)=108 闋0 =1.2P521：2.7 104290.4034.043.404340.43.4043.40434.0

19、43:3.1233.152.7822.0249.884: 11.0411.516.8 0.7=11.76 不夠P53：4.80.480.480.90.092:0.720.0540.0583: 0.11050.040.04354:3.250.3253.250.03250.03255:4.5區(qū)=94.5©2=0.96:0.6 >2.3=1.38P54 1 : 0.020.690.60.56.10.073: 3.11.04:0.98 4.30精確到個位精確到十分位精確到百分位精確到千分位9.307299.39.319.3072.962733.02.962.9632:美國8.4X 3.

20、6=30.24 30.2P555：中國 15.7 X 8.4=131.88 131.9(20-DX 2.85+4.9=19X 2.85+4.9=59.05597 : 28.5 >3=85.5P561：5.20.0720.520.1 0.720.052 0.010.00722:0.08885.9920.5743:3.62=7.211>2=224.2 2=8.43.6久5=911 X2.5=27.54.2 2.5=10.54:P575：4.882.4=11.712 =11.713.61M =17.6817.75.95 3.5 =20.825 20.87:(1) 12.4 K7+12.4

21、=21.08+12.4=33.48480 X (0.4 >0.4) =480X0.16=76.812.4 1.7 12.4=8.68P581：0.90.210.1292.11.22:72.812.59098646211.23:0.070.50.70.050.0054:1.22072.51.20.004P59 5 :2.8 0.5=5.635 妥.5=1448.3 + ( 3+0.5 ) =48.3 行.5 =13.8 后一種便宜7:(50-18.5) -4.5=31.545=7P60 1：1260501202:16140 1610400 161003:7.20.720.0720.45 4

22、54504:18028400038027.5P615:15.6065=2418.6 0.4=46.5220.5=44第二種便宜7:(68.8 4.8)心.2=64 3.2 =2020+1=21P621：1.31390802:保留一位小數(shù)保留兩位小數(shù)保留三位小數(shù)34+142.42.432.4298.5 e.63.23.273.2696.3 63219.719.6919.6883:15+18=0.84:(35.2+28.9+31.7+36.3+27.6+35.4) +6 =195.1 +6=32.5P631 : 商小于被除數(shù) 1.44 1.815.6 24商大于被除數(shù)1.664 0.615.6 2

23、42: (1) 60+4.5 = 13.33用進一法 能做14個48 + 1.3 = 36.92用舍去法 能做36套3: 78+9=8.723.8 +92.6P641 :420.0440.190.122: 0.24 1.25 4.71.320.014: 40.4 £5+7.5 =88.340.4 , 1.5+7.5) =5.050.01 X(3.5 60725)=0.255 乂3.2+4.06) W2=30.255: 1.25。7 >8=1.25X84.7=10X0.7 =77.02+3.9+1.98+2.1=(7.02+1.98 )+(3.9+2.1) =9+6= 158.5

24、 8.9+8.5 0.1 =8.5 (或9+0.1)=85P65 3 .07-0.38- 2.62 =3.07-(0.38+2.62) =0.075:12.5 800=1000 M0=300006: 35.7 3A (2X7) =35.7 -3014 =0.085 萬元 =850 元7:17.2 20=0.861.5-0.86=0.6420 >0.64=12.8P661：x - 十2: 7.322.680.30.2 1.7515.813: 0.8 0.68 X125=0.8 X125X0.68 =6890 -3.54 -11.46 =90 ( 3.54+11.46 ) =753.6 04

25、1.2 >5 =30.73 99+0.73=0.73 X (99+1 ) =73(31.6 -11.7 ) 2.5 -0.4 =(31.611.7 )氣 2.5 >0.4) =19.93.75 99 =3.75 M00 3.75=371.25P674 : 6.2 24=1.61.6 5X5=405:數(shù)量體單價總價/元學數(shù)學153.654講故事368.1291.6合計51/345.66: 19 10=1.916 20=0.828 X (3- 1.9) =30.815X (1.3-0.8) =7.57: (65+72 ) >4.5=137X4.5=616.5P681：0.1259

26、800.12448010001002:133213.321.3320.99903 : 1.1444.2400P694：1.760.535 :160 ¥.5=2406: 40 寸.6=57: 7 丑3X3.5) =7+28 =0.25P701：0.60.621103302.48: 9: <<>><=3:7.98+2.96+1.02 =7.98+1.02 +2.96 =11.965.95(1.2+0.5)X5 =5.95 匕7 力=17.56.32 H.9+6.32 0.1 =6.32 X(0.9+0.1)=6.325.4 X1.3+2.15 0.5 =5.

27、4 345 0.5=37.26P71 5:(20-1.8) £5=18.2 -6.5=2.86:252 -2.4 >3.6=3787:(2.8+1.4) X 1.6+2=4.2 X 1.6 +2=3.48:412.5 芍>=247.5P721:201120122013糧食313231753230棉花3533262:合計水費電費煤氣費總計332310211402900王醒1778523765490張常1545498637410P731 :201120122013信函總數(shù)/萬件806850電話用戶/萬戶2539602:合計 一二1=四五六日總計42825 42136 2720

28、 127151連環(huán)畫101816卜5 602432童話書17671913 1785359科普書15110 78412 5060星期日借的最多童話書最多應該添置一些童話書2:略P741： 5P751：略2:(1) 50 (2)380 (3) 230-300(4)少兒 250+380+220=850成人 230+280+300=810 少兒的多多 850-810=40P761：3、84、66、48、37: 3+3+1=7 共7 種2:3538535883P781：6.28 ( 1.28+2.18 ) =6.28 1.28 2.18 =2.8225X1.6 ¥.25 =50= (25X2)

29、X(0.8 X.25)2:1+193+175+157+139+113:1.411.421.431.441.45P794：7:205:5種6:10場1路車6:306:406:507:007:107:201.4685 單數(shù)4個3:共有6種0.94+0.46+9.54=0.94+ (0.46+9.54 ) =10.940.56 29+056 X0.1=0.56 X9.9+0.1 ) =5.61.471.481.49 共 9 種2:長cm4020108寬cm1245周長cm824428263:男甲男甲男甲男乙男乙男乙男丙男丙男丙女甲女乙女丙女甲女乙女丙女甲女乙女丙P771: 12+8=208+15=2312+15=27 三種5路車6:306:557:20略3aab8 x2 :a的平方P801：P81:XI0 3 X4 5135=65P82+21P835：(34) X5-2 = 10X5+2X2 + 3X4 = 2 4(1 5 -b )