2026学年北师大版四年级下册数学期末专项复习-计算

（北师大版）2026学年四年级下册数学期末专项复习一一计算专项练习

一、直接写出得数

模块1：小数加减法

0.12+0.3=0.45+0.32=2.1+3.75=5.28+4.72=

12.6+5.4=0.63+0.27=3.08+5.92=7.31+2.6二

9.05+0.9=1.44+0.56=6.8-2.3二9.54-3.04=

1-0.35=10-4.26=8.72-0.72=15.3-6=

4.09-1.09=7.5-2.48=12-5.8=6.33-4.1=

0.5840.42=0.91-0.37=3.6+0.44=20-8.55=

5.17-2.9二

模块2：小数点移动

1.8X10-0.36X100=0.045X1000=36.9+10二

724-100-5.14-1000=0.72X10=4.084-10=

0.006X100=95.34-100=0.92X100=454-10=

0.084-100=12.45X1000=80.2・10二3.364-100=

0.105X10=674-1000=0.29X100=5.44-10

模块3：小数乘法口算

①小数义整数

0.7X5=1.3X4=1.1X60=0.09X7=

2.5X3=0.36X2=4.2X5=0.18X4=

3.4X3=0.56X5=1.05X6=0.8X12=

7.2X4=0.03X9=5.8X2=0.41X7=

9.1X5=2.04X4=0.6X15=3.02X3

②一位小数X一位小数

0.4X0.6二1.2X0.5=0.8X0.9=0.7X0.2二

1.5X0.3=0.6X0.8=2.2X0.4=0.3X0.9=

1.6X0.2=0.5X0.7=2.5X0.6=0.8X1.1=

3.2X0.3=0.9X0.4=1.8X0.5=0.2X0,2=

4.1X0.2二0.7X1.2=2.3X0.3=0.6X1.4

③两位小数X整数/一位小数

0.25X4=0.15X2=0.06X8=0.32X0.3=

0.14X0.5=0.07X0.9=0.45X0.2二0.18X0.4=

0.05X0.12二0.36X0.5=0.22X0.3二0.04X1.6=

0.51X0.2=0.19X0.3=0.08X0.7=0.35X0.2=

0.11X0.6=0.27X0.3=0.09X0.5=0.42X0.2

二、列竖式计算（带★需验算）

第一组：小数加减法竖式

12.56+4.33=28.4+15.78=6.09+7.91=

35.64+12.8=9.87+10.35=18.9-5.46=

25.3-8.7=10-2.68=42.05-16.9=

30-9.06=★56.74-28.98=14.5917.82=

20.3-11.55=8.64+12.9=50-18.43=

★32.76+19.54=7.93-2.08=16.44+9.67=

41.2-23.79二25.08+14.92=

第二组：小数乘法竖式

①小数X整数

3.2X6二4.05X8=1.25X12=5.16X5=

0.94X13=7.28X9=2.07X15=0.68X24=

9.3X16二4.12X7=5.09X11=0.37X32=

8.5X14=2.64X18=0.73X25=6.15X9=

3.48X12=1.92X22=0.54X36=7.06X14

②一位小数X一位小数

2.8X0.6二1.4X0.7=5.3X0.5=0.9X3.6=

4.5X0.8二7.1X0.4二3.5X0.9—2.6X0.7=

1.8X0.6=6.2X0.3=0.7X4.4=5.8X0.4=

9.2X0.5=3.3X0.8=2.5X0.7=0.6X7.3=

4.9X0.2二8.1X0.6二5.5X0.6=1.7X0.9

③两位小数X一/两位小数

0.75X1.2=3.6X0.25=0.48X1.5=5.24X0.3=

1.08X2.4=6.5X3.04二0.59X2.3=0.36X4.5=

0.29X1.3=4.16X0.25=2.74X0.6二0.82X1.15=

3.52X0.18=1.45X2.6二0.63X0.42=5.07X0.34=

0.91X0.27=2.38X1.05=0.44X0.55=7.12X0.19

三、脱式计算，能简便计算的必须简便计算

13.56+2.78+6.4429.4+5.63+4.3718.25+9.13+1.75

45.8-12.36-7.6432.7-8.92-1.0850.6-15.25-4.75

0.25X3.8X41.25X5.6X0.80.4X9.2X2.5

3.6X99+3.65.8X101-5.87.2X48+7.2X52

12.5X(0.8+8)0.25X(40+0.4)4.8X1029.9X6.5

28.6-(8.614.9)35.4+12.8-15.46.75+4.9-2.75

15.8+(9.2-5.8)4.2X0.3+4.2X0.78.5X1.1-8.5X0.1

四、解方程

（一）基础一步方程

x+12.5=28.3x+24.6=30x+5J二14.2

x-9.6=15.4x-18.3=11.7x-4.5=9.8

6x=728x=9612x=1443x=40.5

5x=62.5

（二）两步基础方程

2x+16=483x+25=704x+12='60

5x-30=456x-18=548x-24=；

x+3.5X2=15x-4.8X3=5.62x+5.6=18.6

7x-9.1=46.29x+11=92

参考答案：

一、直接写得数

模块1:小数加减法

0.42、0.77、5.85、10；18、0.9、9、9.91；9.95、2、4.5、6.5；0.65、5.74、8、

9.3；3,5.02,6.2、2.23；1、0.54,4.04、11.45；2.27

模块2：小数点移动

18、36、45、3.69；0.72>0.0051、7.2、0.408；0.6、0.953、92、4.5；0.0008、12450、

8.02、0.0336；805、0.067、29、0.54

模块3：小数乘法口算

①小数X整数：3.5、5.2、66、0.63；7.5、0.72>21、0.72；10.2、2.8、6.3、9.6；

28.8、0.27、11.6、2.87；45,5、8.16、9、9.06

②一位小数X一位小数：0.24、0.6、0.72、0.14；0.45、0,48>0.88、0.27；0.32、

0.35、1.5、0.88；0.96、0.36、0.9、0.04；0.82、0.84、0.69、0.84

③两位小数X整数/一位小数

1、0.3、0.48、0.096：0.07、0.063、0.09、0.072；0.006、0.18、0.066、0.064；0.102、

0.057、0.056>0.07；0.066、0.081、0.045、0.084

二、列竖式计算（带★需验算）

第一组：小数加减法竖式

12.56+4.33=16.89；28.4+15.78=44.18；6.09+7.91=14；35.64+12.8=48.44

9.87+10.35=20.22；18.9-5.46=13.44；25.3-8.7=16.6；10-2.68=7.32

42.05-16.9=25.15；30-9.06=20.94；★56.74-28.98=27.76验算：27.76+28.98=56.74

14.59+7.82=22.41；20.3-11.55=8.75；8.64+12.9=21.54；50-18.43=31.57

★32.76+19.54=52.3验算：52.3^19.54=32.76；7.93-2.08=5.85；16.44+9.67=26.11

41.2-23.79=17.41；25.08+14.92=40

第二组：小数乘法竖式

①小数X整数

3.2X6=19.2；4.05X8=32.4；1.25X12=15；5.16X5=25.8

0.94X13=12.22；7.28X9=65.52；2.07X15=31.05；0.68X24=16.32

9.3X16=148.8；4.12X7=28.84；5.09X11=55.99；0.37X32=11.84

8.5X14=119；2.64X18=47.52；0.73X25=18.25；6.15X9=55.35

3.48X12=41.76；1.92X22=42.24；0.54X36=19.44；7.06X14=98.84

②一位小数X一位小数

2.8X0.6=1.68；1.4X0.7=0.98；5.3X0.5=2.65；0.9X3.6=3.24

4.5X0.8=3.6；7.1X0.4=2.84；3.5X0.9=3.15；2.6X0.7=1.82

1.8X0.6=1.08；6.2X0.3=1.86；0.7X4.4=3.08；5.8X0.4=2.32

9.2X0.5=4.6；3.3X0.8=2.64；2.5X0.7=1.75；0.6X7.3=4.38

4.9X0.2=0.98；8.1X0.6=4.86；5.5X0.6=3,3；1.7X0.9=1.53

③两位小数X-/两位小数

0.75X1.2=0.9；3.6X0.25=0.9；0.48X1.5=0.72；5.24X0.3=1.572

1.08X2.4=2.592；6.5X3.04=19.76；0.59X2.3=1.357；0.36X4.5=1.62

0.29X1.3=0.377；4.16X0.25=1.04；2.74X0.6=1.644；0.82X1.15=0.943

3.52X0.18=0.6336；1.45X2.6=3.77；0.63X0.42=0.2646；5.07X0.34=1.7238

0.91X0.27=0.2457；2.38X1.05=2.499；0.44X0.55=0.242；7.12X0.19=1.3528

三、脱式计算

13.56+2.78+6.44

=(13.56+6.44)+2.78

=20+2.78

=22.78

29.4+5.63+4.37

二29.4+(5.63+4.37)

=29.4+10

=39.4

18.25+9.13+1.75

=(18.25+1.75)+9.13

=20+9.13

=29.13

45.8-12.36-7.64

=45.8-(12.36+7.64)

=45.8-20

=25.8

32.7-8.92^1.08

=32.7-(8.92+1.08)

=32.7T0

=22.7

50.6-15.25-4.75

=50.6-(15.25+4.75)

=50.6-20

=30.6

0.25X3.8X4

=(0.25X4)X3.8

=1X3.8

=3.8

1.25X5.6X0.8

=(1.25X0.8)X5.6

=1X5.6

=5.6

0.4X9.2X2.5

=(0.4X2.5)X9.2

=1X9.2

=9.2

3.6X99+3.6

=3.6X(99+1)

=3.6X100

=360

5.8X101-5.8

=5.8X(101^1)

=5.8X100

=580

7.2X48+7.2X52

=7.2X(48+52)

=7.2X100

=720

12.5X(0.8+8)

=12,5X0.8+12.5X8

=10+100

=110

0.25X(40+0.4)

=0.25X40+0.25X0.4

=10+0.1

=10.1

4.8X102

=4.8X(100+2)

=4.8X100+4.8X2

=480+9.6

=489.6

9.9X6,5

=(10-0.1)X6.5

=10X6.5-0.1X6.5

=65-0.65

=64.35

28.6-(8.6+4.9)

=28.66649

=20^,9

=15.1

35.4+12.8T5.4

=(35.4HL5.4)+12.8

=20+12.8

=32.8

6.75+4.9275

=(6.75-2.75)+4.9

=4+4.9

=8.9

15.8+(9.2-5.8)

=15.8-5.8+9.2

=10+9.2

=19.2

4.2X0.3+4.2X0.7

=4.2X(0.3+0.7)

=4.2X1

=4.2

8.5X1.1-8.5X0.1