北師大版五年級(jí)數(shù)學(xué)寒假作業(yè)

1、口算0.5 X 8=3.6X 0.4=39.68x 0=47.6X1=0.15X7=4-0.5=12-0.06=12+1.2=3-30=3.2X 6+3.2 X 4=二.豎式計(jì)算8.08 -2.68 =5.546+ 29.38=17.04X0.268.35 X 3.5 =三.脫式計(jì)算2.65+2.77 ) + ( 1.98-0.98 )3.7 X91.6+6.3 X91.6= 0.45 X 12X0.2=6.2X2.1 -2.1 =口算0.2+0.8 X0.5=6.03 X1OOO= 10X 0.6=6.45X 0.01 =2.50.1 X0.1=0.24X0,5=5,4+ 3.6=1.25-

2、0.25=10.2二.豎式計(jì)算（得數(shù)保留一位小數(shù)）0.43 X0.29 弋52.6X 0,234.58X 0.37 七2.9三.脫式計(jì)算2.8 X 1.43 +0.57=10-6,06 +8.5=6X0.25 X 1.8=144X4X 0.36=X4.5 =x 1.8+ 3.6 +27.2=0.24 X0,5=5.4+3.6=1.25-0.25=10,2X4.59* 0.250.125X4=1.25X 8X 0.5=16 XO.O1 =1.78-0.3=.豎式計(jì)算4.3 X 8.14 y27.6X0.45 y27.6X 0.45 %20+ 12 y.脫式計(jì)算0.87 X 3.16+4.64=6

3、.8X 0.75-0.5=13.75-0.125 - 2.75=53+23.4+7.2=一.口算0.01 -0.1 =3.6 -0.4=1.80.6X20=X0.8 =x-0.4x=2.45d-2d=X3=0.120.27X0.7 =4-0.003=+ 5 =二.豎式計(jì)算2.5 -0.7=2.5-0.7=3.25X9.04=5.08x 0.25 y三.脫式計(jì)算2.881 -0.43 -0.24 X3.5=28-(3.4+1.25X 2.4)=(31.8+3.2 X4)+ 5=31.5X4+(6+3)口算1.6 -0.5 =0.2+0.05=2,5X2,3 X 4=4.7X6 + 4X47= 0

4、.5X4-0.5 X4=38.5 X OX 0.38=二.豎式計(jì)算36.8+16弋10.1-3.315.3三.脫式計(jì)算0.64 X25X7.8+2.2=+ 2.5+2.5 -2=1941.5-1.5+ 1.5=3.6-1.2 -2.4=0.6X0.8=3X0.9=+ 11弋0.78-64.8 -1.8 X 0.9=36.72+ 4.25 X9.9=一.口算2.5 X0.4=3.6X0.4=12.5X8=50X0.04=80 X 0,3=1.1 X9=9.32-5.98=7.61-7.09=9.73-5.77=8.71+3.59=二.豎式計(jì)算1. 64+2. 35=8. 34-6. 22=22.

5、 4-7=0. 48X350=.脫式計(jì)算5180-705X6=24-2.4 -2.5 X 0.8=3.416+ (0.016 X35)9.4X5.8 + 10.6 X5,8=一口算8.03-7.77=1.64+1.32=9.29-7.66=2.26+9.34=6.45-4.57=9.31- 4.22=5.19+7.38=5.74+8.14=7.81+ 6.1=7.72+7.07=二，豎式2.05+11 =2.14X 3.6=0.15X 0.84=2.07X 4.8=三想一想，下面各題怎樣算簡(jiǎn)便就怎樣算！3.04+5.83+16.96+4.171.25X 32X253.25 X 1.6-0.6

6、x 3.250.88+4 + 0.25一.請(qǐng)你在一分鐘內(nèi)快速口算出下面各題的得數(shù)。3.8+5.2=6.5X4=10-0.99=3.85.1 -17=0.25 X 8X 0.4=1.25 X 80=二.認(rèn)真計(jì)算下面各題，除不盡的得數(shù)保留兩位小數(shù)。(23.6-5.20.4 ) +6.726.7+ (2.53+1,84 ) X 5三.計(jì)算下面各題，能用簡(jiǎn)便方法計(jì)算的要用簡(jiǎn)便方法計(jì)算。0.25 X8,3 X4+1.723.6-0.5X 0.5-6.752.3X+ 1.9=13.9+ 0.1 =4.8-0.24=0.63-21 =1.25 X5.7 X810-0.2 +2.5(5.38-1.82 ) +

7、6.44X2.3(2.4+2.4+2.4+2.4 ) X0.25一口算630-70=4.3-0.8=3.4+1.6=1.84X700=18X50=4.2+ 6=二.豎式計(jì)算12. 6+3. 4=10-7. 64=9三.脫式計(jì)算13.8 X4.5+6.28.032+12.6-0.421.37.2+ 2.8 =0.9X0.01 =.52-34=8X1. 36=-0.3=2.5X40=X 1.8-16.39153-0.51 +3口算12X0.6=0.1-0.001 =3.2-0.08=2.8X0,2=7.9+3.1 =0.9 X0.5=0.24X 5=(0.85-0.85 ) X 0.95=2.5

8、X4=20X0.5=二.豎式計(jì)算13. 88-6. 29=9.25X16=8-50=0.99+1. 1 =F面各題，怎樣簡(jiǎn)便就怎樣算3.2 X 16.8+83.2 X 3.216.8-3.28-6.72(19.5-5.3 ) X 2.8+157.5X (5.1+2.1 ) -1,80.9 -0.01 =3.5+ 7.6 =0.42X0.5 =0.51-1.7 =4.72 + 4.2=5.2 -0.13 =99X1.01 =13.5-2.8 -7.2=32.8+ 19=7-0.25 =二、列豎式計(jì)算12. 6+7. 43=29+22 (保留2位小數(shù)）28.448-14=32X6.07=40.2

9、X2.7 -16.2(24.8 + 32) +77.32-4.37 X0.84.05-0.05-0.81口算3X 0.2 x 0,5 =8X (2.5 +0.25二.列豎式計(jì)算。2.7-0.32=0.96+0.3=1.5X0,4=0.36+ 0.64 =64.32(前兩行并驗(yàn)算)35-56=三.脫式計(jì)算7.62 -0.16-0.168.75 + (12.5 X7)2.5X 0.7 x 0,8=-2.5 =-16=72.8-0.8=8.4 X 0.2+ 1.6 X 0,2 =0.36 x 6.9=15.36-12=5.4 + (2.7 X4)1.032+36-0.368.4 +4.2 =0.05

10、X0.8 =2.56-0.37 =1.25X0.8 X 0.5 =121.23 X3 =3.2-1.6 =3.5+ 3.5 X 3=19.6+ 2=8.8一 層式2.34 X 1.5=11.7 -2.6=25.2 -42=3.74 -X2.5 =-2.2=34=三.脫式計(jì)算0.432 - (6.21-6.09 )4.8 -0.4-2.1 -210.048 X90X 0.46 (保留兩位小數(shù))2.46-2.5-7.9一.口算13.85.63.9 +2.03 =7.2 X 0.3 +2.8 X 0,3 =0.75 X4=(1.5 + 0,25) X4 =二.列豎式629-61=4.8 +2.3(得

11、數(shù)保留兩位小數(shù))(得數(shù)保留一位小數(shù))三.脫式計(jì)算9.28 + (2.1-1.7 ) +2.51.25 X5.7 X8+ 9.9 =2.4X2.5 =16-1.6 =X 1.01=4.2-0.1 =4.2 +3.5 =6.49 X 0.58=（得數(shù)保留兩位小數(shù)）0.27-1.1 弋（得數(shù)保留兩位小數(shù)）5.6X12.510-0.2-2.52.14 -0.9 =27+ 456 + 73=1224-4+56-4=7.2 -1,2=二.豎式 13.6 -2= 11.5 +5=三.脫式計(jì)算-0.3=2.87+ 0.7 =13+ 4=3.86-100=3.9 X0.01 =98. 4X 100= 19.5

12、-3= 12.6-12=11.72-7.85-1.721.8 X25+12X2.5口算9.1 -1.3=8.2 -10=1-0.45=36+2.45=0.42 -7=0.69-1 =1.21 -0.6=0.5-0. 2=0.48 X 0=8.4-2.1 =二.豎式計(jì)算 28.8 +24=20.4 -4=96.6 -42=26-4=4.264 -(0.16 X 20.5)三.脫式計(jì)算2.6 義(2.139+9.3X6.2)(18.4+27.83 +4.6 ) X 0.22.6 X 1.9+2.6 X 1.976-1000=8.7-5=1.28 X 8=40X25=0.51 X100=0.58 X

13、99=0.6 X0.9=0.1 X0.5=0.5 X 2-0.5 X 2=12.4-(2.4+3,25 )=二.豎式計(jì)算55.8 +31=82.5 + 15=82.5 +25= 18.9 -6=三.脫式計(jì)算0.56 X 23.79-2.6 8.45+ 1.3+2.69.42+2.8 -0.255.4 + (2.7 X 4)12.5 -0.5 -0.4=1084-18X4=2.6+3.1-2.6+3.1 =0.47+0.13=4.8 +2.3（得數(shù)保留一位小數(shù)）1-0.95=0.3+0.27=二.豎式計(jì)算629-61 =（得數(shù)保留兩位小數(shù)）4.5+4=4-0.6=6.49 X 0.58=（得數(shù)保留兩位小數(shù)）73X4X25=10+0.08=0.27-1.1 弋（得數(shù)保留兩位小數(shù)）三.脫式計(jì)算 39.6 +（1.8+1.5）（2）2.432 -3.2+2.640.2 X2.7 -16.2（24.8 +32） -7一.口算0.95+0.05=2.5+3.2=0.74+0.16=480-40=0.53-100=5.1+2.3=二.豎式計(jì)算2.7 -0.32=35-56=三.脫式計(jì)算7.32-4.37 X0.84.05-0.05-0.8123 X1OO= 9.8-4.8=125X80=0.078-10=0.36 X 6.9=15.36-12=7.62 -0.16-0.168.75 + (