小数除法计算题500道(口算300道竖式200道)含答案解析

小数除法计算题500道（口算300道+竖式200道）含答案

一.口算题（共50小题）

1.直接写出下面各题的得数.

4.8+0.8=7.5-4.5=0.754-15=3.5X0,4=

104-0.01=10-2.05=0.6X1.5=4+0.25=

1.36+2.87+3.64=1.8X0.4X0.25=

2.直接写出得数.

2.14-0.7=Z?4-5=14-0.2=7+8=5.3+0.53=

0.14-0.01=0.25X40=6.5■5.6=1.264-0.6=0.54+6=

3.直接写得数

30.2+2=0.014-0.5=0.724-8=4.8+0.06=

6.4+3.6=14-3=10-1.55=1.25X8=

4.口算.

0.94-0.03=7.2-2=0.05X2=0.74X11=

0.25X4;0.25X4=3.14~3.1=1.32+8-1.32+8=7.2+40=

6.25-0.87+0.13=0.4X2,7X25=

5.直接写得数.

6.3+0.3=1.8X0.5=25.1+4.9=2.5X0.5X4=

6.直接写出得数.

6.44-0.2=0.9-0.89=1.07+8.3=3.64-10=

100X1.5=8.1+9=4.5X0.2=11-3.9=

7.直接写得数.

5.64-0.8=6.82-5.2=2.5X0.04=1-0.5+0.5=

9.154-0.3=17.24-0.86=1.84-0.1=12.5X0,8X0=

8.直接写得数

1.4X100=2.804-10=2.44-100=0.33X1000=

904-6=0.025X100=904-100=0.32+1.98=

14.3+5.7=9X99+9=

9.直接写得数.

104-0.01=0.22+0.8=10-2.05=400.25=

04-19.8=0.2X0.05=1.36+3.64=0.4X0.25=

10.直接写得数

0.25+0.5=।0.32+0.04=1.25X4=

1.64-0.4=0.544-6=5.64-7=

11.直接写得数

5.09：10=12.5X0,8=0.54-0.25=45.64-1=32.1X0,2=

0.25X6=0.4X0,5=0.54+0.9=10.2+0.01=12.5X0.8=

12.口算

4+5=1.84-0.03=754-2.5=0.2X25.4=

3.6+4.4=10-5.2=3.4X0.2=7.8+6=

13.直接写出得数

3.6+0.3=6.3+7=5.6X100=0.25X4=

0.56+28=364-0.9=0.64+0.8=0.72X3=

1.2X20=7+5=6.124-0.5=2.94-54-0.2=

14.口算

3.4+2=2.74-0.3=0.42H-6=4.12X2=

6.3:0.9=1.53+2.4=4.8X0.5=6.44-80=

40X0.41=30.9X9=10X4.1=4.6+0.5=

15.直接写得数.

0.25+5=0.724-0.9=3.145X100=7.24-3.6=1+50=

12.44-4.1=0.01+0.99=7.64-7.6=1.25X4=50-0+2.5=

16.直接写得数

0.35+5=0.3X2=0.3+02=0.7X0.9=

0+74-3=2.4X5=4.9X0=2X0.45X5=

17.口算我最棒.

0.644-1.6=1.4X0.5=0.724-0.9=10.9-8.9=

2.7+7.2=04-1.5=2.7X0,3=244-0.3=

4.3+2.7=200X0.07=0.25X4.9=4+0.8=

18.直接写得数

0.8+10=25+8=1874-1000=04-58=

237-9=257+0=0X0.008=0.001X100=

6.0805X1000=24X5=

19.直接写得数.

0.634-9=5.44-1.45=0X4.65=3.54-0.7=

14-0.25=4X0.5=0.14-0.05=3.3+0.1=

2.74-0.90.364-0.12=0.144-2=9.6+6=

20.直接写得数.

8.4+4=3.64-0.2=0.72+90=

1.1X0.8=0.56+4.44=1.25X5X8=

2.9+3.7+2.1=7.6X8+2.4X8=0.4X0.25=

21.请你直接写出得数

4.84-0.8=7.5-0.45=5.7+3.3=1+0.25=6.2:0.627=

0.75:1.5=0.24-4=0.21X4=1.2X60=5+32+0.8=

22.直接写出得数.

0.724-0.9=23.7+2.63=4.84-0.4=0.5+2=

6.5_5.6=1+0.25=8+0.8=104-4=

0.4X0.8=0.484-0.8=0.35X4=0.34-0.15=

23.直接写出得数

12+0.4=2+8=44-0.5=0.724-4=

0+5.32=3.6+1.8=1-0.73=0.24+0.6=

6.4+1.6=0.125X80=0.5X0.8=13.2^0.6=

24.直接写得数.

2.54-0.5=0.42+0.6=3.5+0.01=0.54+0.6=0.8-0.35=

0.25X4=12,5X0.8=0.2X50=04-3.68=0.3X0.2=

25.直接写出得数.

0.564-0.7=0.6+0.65=3.94-1.3="124-0.03=

5.24-0.13=99X1.01=13.5-2.8-7.2=25X0.32X125=

26.口算

3.64-1.2=8.1+9=4.8+0.6=1.25X8=

994-0.9=254-0.05=88+0.008=14-2.5=

27.直接写得数.

0.644-0.32=0,7X1.2=7.24-(0.8X9)=40X0.25=0+4.8=

2.9+2.9=0,3X0.6=0.07X50=100X0.07=22.1X1=

28.口算

0.02X0.1=12-4.3=36+0.01=

0.8X0.125=2.3+0.8=0.36+0.4+9=

29.口算.

3.64-1.2=4.4+4=4.84-0.4=1-0.25=

30.直接写得数

6.4+8=9.8-4-0.14=4.84-16=0.634-9=

8.7+29=0.994-9.9=5.54-0.11=13.8+6.9=

31.直接写出得数.

0.56+8=0.07X10=3-1.9=

1.2X0.1=514-0.3=4.3+15.37=

2.9X10.02心12.14-3.9心64-0.58y

32.直接写出得数.

3.6+3=7.84-6=9.94-9=56.74-7=

4.84-4=3.9:13=3.6・12=8.14-27=

0.044-2=0.88+4=1.254-5=7.5+0.05=

33.口算

14-0.25=0.784-6=2.4+24=

6.6+0.6=54-0.5=344-0.2=

0.8X7=8X0.6=70X0.12=

34.直接算出得数.

2.14-2=3.8+1.02=7.5X0.4=2x-0.7x=10+8=

0.8X0.6=3.2X0.5=9.6+0.06=3.57+0.7=4.5+0.76=

35.直接写出得数.

22.4-4-4=0.25X4=0.21+7=5.64-7=1.2X5=

424-3=6.12+0.6=0.544-6=38.54-5=244-0.8=

36.直接写出得数.

1.6+0.4=7.2+8=4.24-0.01=2-3.64-1.8=

4+5=4.6+0.46=5.4H-1.8=04-21.3=

37.口算

1.24-3=0.484-6=4.64-23=6.84-4=0.72-12=

0.724-4=9.64-6=5.24-13=12.54-5=0.124-5=

38.直接写得数.

564-100=1.29-0.29=0.56X100=5.35+2.5=

0.625X100=5-2.1=359+402=18.6-7=

8.07X10=3.5+0.9=1.2+0.08=4X(25X14)=

7.34X0=3.31+1.2=25X4+25X4=0.25+0.2+0.75=

39.口算

0.424-0.6=5X0.6=2.44-0.24=1.25X2.3X8=

7.8+1.2=10・0.1=0.1xo.1=2.5-2.5X0.4=

40.直接写出得数.

10-9.9=0.67+0.3=8.9X100=2.5X4=

84-16=0.9X60=1.044-2=9.14-7=

1.5X8=0.394-39=0.254-8=0.05X300=

0.45+9=7.24-9=0X5.8=4X8X0.25=

41.口算.

2.44-2=484-0.6=0.244-0.2=4.8+6=

2.44-0.2=4.84-0.6=9.6+0.3=964-3=

42.直接写出得数

165=224-4=484-100=12.64-3=6.06;6=

354-70=95:5=1.3义4=12.64-0.6=1.84-6=

43.直接写的数

0.75:0.5=1.64-0.4=74-3.5=

16.8:0.4=2.8+0.28=0.5+0.25=

44.口算下面各题.

5.744-10=4.24-0.07=0.16X4=

0.44~0.8=1.2X5=0.644-2=

0.564-0.7=0.6+0.65=3.9:1.3=

45.计算.

12.84-4=31.54-5=39.64-4=

97.8+6=11.7+3=29.4+2=

83.5+5=95.24-4=67.84-2=

46.口算：

0.96+8=0.084-Q.01=0.24-0.05=0.364-0.18=5.14-1.7=

0.54+0.6=4.84-0.24=10-0.92=0.9+45=2.5X44-2.5X4=

47.直接写出得数.

2.5X4=10+0.1=2.8+0.4=4.54-0.15=7.24-0.9=

1.5X6=154-0.5=54-2=1.24-0.03=1.3X3=

48.直接写出得数.

0.3+5.7=1-0.6=3.3+5.6=0.25+5.75=

5.3+50.7=0.4-0.35=1-0.04=8+50.28=

0.9-0.7=10-9.9=8.6X100=148.34-100=

49.直接写出得数.

3.6+1.2=0.724-0.9=2.6+13=4.84-0.4=

4.4+4=0.784-6=7.24-0.4=14-0.25=

7.1X0.4=4.54-0.15=1-0.07=0.42+0.7=

50.直接写得数

0.294-100=54-1000=19+04-19=423-(100+23)=

170X100=3204-100=90-26-13=0.56X100+1000=

0.26X1000=24X99+24=38-25+12-25=5004-100X1000=

二.竖式计算（共50小题）

1.竖式计算.

0.51+0.5=984-5.6=20.4+1.7=验算:

2.用竖式计算（★需验算，除不尽的保留两位小数）

1.092+0.42=★2104-1.4=8.9-4-0.56%

3.列竖式计算.

69.024-3.426.8X0.3546.843.4（保留一位小数）

4.列竖式计算.

2.054-250.134-0.17（商精确到百分位）

4.2+0.284.2+1.32（得数保留三位小数）

5.用竖式计算.

117.34-0.4624X0.3740.324-I.68.

6.竖式计算

2.1+0.7=7+0.35=7.24-4=

7.用竖式计算并验算.

2.76X24=12.64-0.28=

8.用竖式计算.

220.54-15=（用乘法验算）2.64X1.09=（得数保留两位小数）

6.34-0.125=0.84X1.65=

9.列竖式计算.（后两题得数保留两位小数）

33.64-568.964-0.287.124-0.224,134-14.

10.竖式计算.

12.44~4=45.94-0.6=514-0.3=

52.84-12=75.64-0.18=9.64-0.32=

11.用竖式计算

13+2.554.54-0.160.68+0.95（保留两位小数）

2.05X0.16（验算）78.6：11=（商用循环小数表示）6.214-0.03.

12.竖式计算，带*的要验算.

1.254-0.25=78.6+11=（商用循环小数示）

5.63+7.8能数保留两位小数）28,284-0.4=*0.303+5=

13.列竖式计算（带★的保留两位小数）

★1.574-3.9★0.58X0.2470.74-33（商用循环小数表示）

14.竖式计算（得数保留1位小数）带★的验算

★64.84-1.8★8-6.69"0.65X3.84心

15.竖式计算.（带*的要验算）

9.44-11=*144+12=14.24-11

16.竖式计算.

75.64-0.1825.64-0.0322.78X1.8

5.63+6.1（得数保留两位小数）10:3.3（用循环小数表示）

17.竖式计算，按要求保留商的近似值.

30+7（保留两位小数）60.9+3.2（保留一位小数）25+9.9（保留整数）

18.用竖式计算

(1)6,214-0.03=(2)10.8+45=(3)8.544-0.7=(4)72.9

-0.9=

19.竖式计算.（第②、④题验算）

①50.96+6.5②9.254-3.7=@154-74©6.72+4.2=

20.用竖式计算

(1)1.254-0.25=(2)8.4+0.56=

（3）8.54+0.7=（验算）（4）78.64-11=（商用循环小数表示）

21.用竖式计算.

4.5X0.18=2.346+2.3=验算：70.3X3.6=5.064-2.2=

22.用竖式计算（带*得数保留两位小数）

2.6X0.2529.94-0.464.654-1.3.

23.列竖式计算(除不尽的保留两位小数)

(D24.64-0.16；②13.94-6；③0.32591.5；

@6.244-0.8；⑤18.3+4；@19.24-6.

24.用竖式计算，并指出哪些是循环小数.

7.054-0.941.714-3.8

4.834-0.75.74-9

38.2：2.72.164-18

1.8+0.253.74-2.2.

25.用竖式计算

(1)3.94-0.26«(2)9.35+3.4心(得数保留一位小数)

（3）0.174-0.11%（商用循环小数表示）（4）0.168-0.7°

（5）4.05+18打（得数保留两位小数）（6）4.68+5.4=（商用循环小数表示）

26.用竖式计算

21.454-15；49.04+8；217.64-34；

11.74-36；1.694-26；54.81+27.

27.将下列式子的得数保留两位小数

①25.32+0.15②1.03+1.2③1.07+9.2

@9.454-0.32@13.514-0.13⑥17.96+0.36.

28.列竖式计算.（第三小题得数保留两位小数，第五小题请写出验算过程.）

47.044-5.6=3.28X2.7=0.764X1.2

52.924-0.27=84-1.28=15.364-12=

29.列竖式计算:

0.1954-0.133.64-0.876.76+0.76

64-2.47.0854-0.659.724-0.27.

30.竖式计算.

(1)0.38X0.23(2)5,79X3,6(3)4.6X0.25(4)6+24

(5)52.954-75(6)3.01~7(7)4.95-11

（8）84.014-31（用乘法验算）(9)0.646H-19(10)4.7X0.59.

31.计算下面各题，并用乘法验算

(1)15.64-12(2)328+16(3)1.354-27(4)0.646-19.

32.用竖式计算下列各题.（除不尽的保留两位小数，后面两道题要验算）

45.15+1.5=52.65+1.3=15.754-2.1=

8.42+0.6=0.436-4-0.2=9.254-3.7=

33.列竖式计算

6.64-443.5+2918.94-271.35-F15

37.54-628.64-1120.44-243.644-52.

34.竖式计算

0.4484-32=14.3+6.7=3.8X0.26=11.32-8.95=

35.用竖式计算

1.264-1.8=64X5.04=43.54-0.29=验算

5.63+6.1（得数保留两位小数）27.84-2.5=验算9.8X0.75=

36.笔算

5.02X4,8=1.35X320=26+0.13=48+2.3心（得数保留两位小数）

37.用竖式计算，加★号的要验算.

★0.7564-0.18=0.35X0.48=*6.02-5.94=

38.用竖式计算（有★的要验算）

96.64-427.79+95★6.34-0.42

74-Q.350.14+0.08424-8.

39.用竖式计算.

7.8+75=2.554-2.5=2.5X1.04=

40.列竖式计算

3.5X10.880.934-26.7（精确十分位）1.424-1.1（商用循环小数表示）

41.计算下面各题，除不尽的用循环小数表示商

43.8:120.12-4-0.2574-0.3511.62-F9

134-1130.1-4-3319・125.6:0.07.

42.竖式计算

30.64-454.064-0.58X54.64-0.91.

43.列竖式计算.

0.58X0.08=（结果保留两位小数）0.544-0.018=13.6+3=（商用循环小数表示）

44.列竖式计算，并验算前两个，第三个保留两位小数.

95.24-28=46.84-0.13=5.634-7.8=

45.竖式

0.73X2.157.38+1.65.95+27.6（得数保留两位小数）

46.用竖式计算.

3.38+1830.9X2,75.95+27.6（得数保留两位小数）

47.列竖式计算.

4.83+23=3.09+1.5=0.144-0.08=（验算）

48.竖式计算.

70+5.6=227.84-0.34=7.525+0.38=

49.用竖式计算下面各题，除不尽的保留两位小数

8.654-0.251.84-127.2+1.1.

50.用竖式计算.

7.02X1.329.834-9.50.54+3.6

小数除法计算题（口算300道+竖式200道）答案

一.口算题（共50小题）

1.【解答】解:

4.84-0.8=67.5-4.5=30.754-15=0.053.5X0.4=1.4

104-0.01=100010-2.05=7.950.6X1.5=0.944-0.25=16

1.36+2.87+3.64=7.871.8X0,4X0.25=0.18

2.【解答】解:

2.14-07=32+5=041+02=57+8=0.8755.34-0.53=10

0.14-0.01=100.25X40=106.5-5.6=0.91.26+0.6=2.10.544-6=0.09

3.【解答】解

30.24-2=15.10.014-0.5=0.020.72+8=0.094.84-0.06=80

6.4+3.6=101:3=0.:10-1.55=8.451.25X8=10

4.【解答】解:

0.9+0.03=307.2-2=5.20.05X2=0.10.74X11=8.14

0.25X44-0.25X4=163.1+3.1=11.32+8-1.32+8=167.24-40=0.18

6.25-0.87+0.13=5.510.4X2.7X25=27

5.【解答】解：6.34-0.3=21

1.8X0.5=0.9

25.1+4.9=30

2.5X0.5X4=5

6.【解答】解:

6.4+0.2=320.9-0.89=0.011.07+8.3=9.373.64-10=0.36

100X1.5=1508.1+9=17.14.5X0.2=0.911-3.9=7.1

7.【解答】解:

5.6+0.8=76.82-5.2=1.622.5X0.04=0.11-0.5+0.5=1

9.154-0.3=30.517.24-0.86=201.84-0.1=1812.5X0.8X0=0

8.【解答】解:

1.4X100=1402.804-10=0.282.44-100=0.0240.33X1000=330

90+6=150.025X100=2.590・100=0.90.32+1.98=2.3

14.3+5.7=209X99+9=900

9.【解答】解:

104-0.01=10000.22+0.8=1.0210-2.05=7.954+0.25=16

04-19.8=00.2X0.05=0.011.36+3.64=50.4X0.25=0.1

10.【解答】解：0.25+0.5=0.5

0.324-0.04=8

1.25X4=5

1.6+0.4=4

0.544-6=0.09

5.64-7=0.8

11.【解答】解:

5.09・12.5X0.54-0.25=245.64-1=45.632.1X

10=0.5090.8=100.2=6.42

0.25X6=1.50.4X0,5=0.20.54・10.2・12.5X0.8=10

0.9=0.60.01=1020

12.【解答】解:

44-5=0.81.84-0.03=60754-2.5=300.2X25.4=5.08

3.6+4.4=810-5.2=4.83.4X0.2=0.687.84-6=1.3

13.【解答】解:

3.64-0.3=126.34-7=0.95.6X100=5600.25X4=1

0.564-28=0.0236+0.9=400.64+0.8=1.440.72X3=2.16

1.2X20=2474-5=1.46.124-0.5=12,242.9+5+0.2=2.9

14.【解答】解:

3.4-4-2=1.72.74-0.3=90.424-6=0.074.12X2=8.24

6.3+0.9=71.53+2.4=3.934.8X0.5=2.46.44-80=0.08

40X0.41=16.430.9X9=278.110X4.1=414.6+0.5=92

15.【解答】解:

0.25^5=0.050.72+0.9=0.83.145X100=314.572:3.6=214-50=0.02

12.4+4.1=30.01+0.99=17.6+7.6=11.25X4=550-0X2.5=50

16.【解答】解:

0.354-5=0.070.3X2=0.60.34-0.2=1.50.7X0.9=0.63

04-74-3=02.4X5=1.24.9X0=02X0.45X5=4.5

17.【解答】解:

0.644-1.6=0.41.4X0.5=0.70.724-0.9=0.810.9-8.9=2

27+7.2=9.90X5=02.7X0.3=0.81244-0.3=80

4.3+2.7=7200X0.07=140.25X4.9=1.22544-0.8=5

18.【解答】解:

0.810=0.825+8=331874-1000=0.1870+58=0

237-9=226257+0=2570X0.008=00.001X100=0.1

6.0805X1000=6080.524X5=120

19.【解答】解:

0.63+9=0.075.44-1.45^3,720X4.65=03.5+0.7=5

14-0.25=44X0.5=20.14-0.05=23.3^0.1=33

2.7+0.9=30.364-0.12=30.144-2=0.079.64-6=1.6

20.【解答】解:

8.4+4=2.13.64-0.2=180.724-90=0.008

1.1X0,8=0.880.56+4.44=51.25X5X8=50

2.9+37+2.1=8.77.6X8+2.4X8=800.4xo.25=O.1

21.【解答】解:

4.8+0.8=67.5-0.45=7.055.7+3.3=914-0.25=46.2+0.62-1=9

0.754-1.5=0.50.24-4=0.050.21X4=0.841.2X60=725+32+0.8=9

22.【解答】解:

0.724-0.9=0.823.7+2.63=26.334.84-0.4=120.5+2=0.25

6.5-5.6=0.914-0.25=484-0.8=1010+4=2.5

0.4X0.8=0.320.48+0.8=0.60.35X4=1.40.34-0.15=2

23.【解答】解:

12+0.4=32+8=0.254+0.5=80.724-4=0.18

0+5.32=03.6+1.8=5.41-0.73=0.270.244-0.6=0.4

6.4+1.6=40.125X80=100.5X0.8=0.413.24-0.6=22

24.【解答】解:

2.5+0.5=50.424-0.6=0.73.54-0.01=3500.544-0.6=0.90.8-0.35=0.45

0.25X4=112,5X0.8=100.2X50=1004-3.68=00.3X0.2=0.06

25.【解答】解：

0.56H-0.7=0.80.6+0.65=1.253.94-1.3=3124-0.03=400

5.24-0.13=4099X1.01=99,9913.5-2.8-7.2=3.525X0.32X125=1000

26.【解答】解:

3.64-1.2=38.1+9=0.94.84-0.6=81.25X8=10

994-0.9=110254-0.05=500884-0.008=1100014-2.5=0.4

27.【解答】解:

0.644-0.32=20.7X1.2=0.847.24-(0.8X9)=140X0.25=1004-4.8=0

2.9+2.9=10,3X0.6=0.180.07X50=3.5100X0.07=722.1X1=22.1

28.【解答】解：0.02X0.1=0.002

12-4.3=77

364-0.01=3600

0.8X0.125=0.1

2.3+0.8=3.1

0.364-0.44-9=0.1

29.【解答】解：3.6+12=3

4.4+4=1.1

4.84-0.4=12

14-0.25=4

30.【解答】解:

6.4-4-8=0.89.8+0.14=704.8H-16=0.30.63+9=0.07

8.74-29=0.30.99+9.9=0.15.54-0.11=5013.8+6.9=2

31.【解答】解:

0.564-8=0.070.07X10=0.73-1.9=1.1

1.2X0,1=0.12514-0.3=1704.3+15.37=19.67

2.9X10.02心3012.14-3.9g364-0.58仁10

32.【解答】解:

3.64-3=1.27.84-6=1.39.94-9=1.156.74-7=8.1

4.8+4=1.23.94-13=0.33.64-12=0.38.14-27=0.3

0.044-2=0.020.88+4=0.221.25+5=0.257.5^0.05=150

33.【解答】解:

14-0.25=40.78+6=0.132.4+24=0.1

6.6+0.6=1154-0.5=10344-0.2=170

0.8X7=5.68X0.6=4.870X0.12=8.4

34.【解答】解:

2.14-2=1.053.8+1.02=4.827.5X0.4=32x-0.7x=1.3x104-8=1.25

0.8X0.6=0.483.2X0.5=1.69.64-0.06=1603.574-07=5.14.5+0.76=5.26

35.【解答】解:

22.4+4=5.60.25X4=10.214-7=0.035.67=0.812X5=6

424-3=146.124-0.6=10.20.544-6=0.0938.505=7.724+0.8=30

36.【解答】解:

1.6+0.4=47.2+8=0.94.2+0.01=4202-3.6+1.8=0

44-5=0.84.6^-0.46=105.44-1.8=304-21.3=0

37.【解答】解:

1.24-3=0.40.484-6=0.084.623=0.26.84-4=1.70.724-12=0.06

0.72+4=0.189.6+6=1.65.24-13=0.412.5+5=2.50.124-5=0.024

38.【解答】解:

564-100=0.561.29-0.29=10.56X100=565.35+2.5=7.85

0.625X100=62.55-2.1=2.9359+402=76118.6-7=11.6

8.07X10=80.73.5+0.9=4.41.2+0.08=1.284X(25X14)=1400

7.34X0=03.31+1.2=4.5125X44-25X4=160.25+0.2+0.75=1.2

39.【解答】解:

0.42+0.6=0.75X0.6=32.44-0.24=101.25X2.3X8=23

7.8+1.2=9104-0.1=1000,1X0.1=0.012.5-2.5XO.4=1.5

40.【解答】解：

10-9.9=0.10.67+0.3=0.978.9X100=8902.5X4=10

84-16=0.50.9X60=541.044-2=0.529.1:7=1.3

1.5X8=120.39+39=0.010.254-8=0.031250.05X300=15

0.454-9=0.057.24-9=0.80X5.8=04X8X0.25=8

41.【解答】解：

2.44-2=1.2484-0.6=800.24+0.2=1.24.8+6=0.8

2.4^0.2=124.8+06=89.6+0.3=3296+3=32

42.【解答】解：

164-5=3.222+4=5.5484-100=0.4812.6+3=4.26.064-6=1.01

35・70=0.595+5=191.3X4=5,212.64-0.6=211.8+6=03

43.【解答】解：

0.754-0.5=1.51.64-0.4=474-3.5=2

16.84-0.4=422.8+0.28=100.5^0.25=2

44.【解答】解：

5.744-10=0.5744.24-0.07=600.16X4=0.64

0.44-0.8=0.51.2X5=60.644-2=0.32

0.56+0.7=0.80.6+0.65=1.253.94-1.3=3

45.【解答】解：(1)12.8+4=3.2(2)31.5+5=6.3(3)39.6+4=9.9

(4)97.84-6=16.3(5)11.74-3=3.9(6)29.44-2=14.7(7)83.5+5=16.7

(8)95.2+4=23.8(9)67.84-2=33.9

46.

【解答】解：口算：

(1)0.964-(2)0.084-(3)0.24-(4)0.36+(5)5.14-1.7=3

8=0.120.01=80.05=40.18=2

(6)0.54+(7)4.84-(8)10-(9)0.94-(10)2.5义4：

0.6=0.90.24=200.92=0.0845=0.022.5X4=16

47.【解答】解：

2.5X4=10104-0.1=1002.8+0.4=74.54-0.15=3072+0.9=8

1.5X6=915+0.5=3054-2=2.51.24-0.03=401.3x3=3.9

48.【解答】解：

0.3+57=61-0.6=0.43.3+5.6=8.90.25+5.75=6

5.3+50.7=560.4-0.35=0.051-0.04=0.968+50.28=58.28

0.9-0.7=0.210-9.9=0.18.6X100=860148.34-100=1,483

49.【解答】解:

3.6+12=30.72+0.9=0.82.64-13=0.24.84-0.4=12

4.4^4=1.10.784-6=0.137.24-0.4=181+0.25=4

7.1X0.4=2.844.5+0.15=301-0.07=0.930.42+0.7=0.6

50.【解答】解:

0.294-100=0.002954-1000=0.00519+04-19=19423-(100+23)=300

170X100=170003204-100=3.290-26-13=510.56X1004-1000=0.056

0.26X1000=26024X99+24=240038-25+12-25=0500-4-100X1000=5000

二.竖式计算题（共50小题）

1.【解答】解：0.514-0.5=1.02

98+5.6=15

20.44-1.7=12

2.【解答】解：1.0924-0.42=2.6

★210+1.4=150

8.94-0.56F5.89

3.【解答】解：69.024-3.4=20.3

26.8X0.35=9.38

46.8H-3.4^13.8

4.【解答】解：2.054-25=0.082

0.13+0.17心0.76

4.24-0.28=15

4.24-1.32"3.182

5.【解答】解：117.3+0.46=255

24X0.37=8.88

40.324-1.68=24

6.【解答】解：2.1+0.7=3

7+0.35=20

7.24-4=1.8

7.【解答】解：①2.76X24=66.24

②12.6+0.28=45

8.【解答】解：220.5+15=14.7

2.64X1.09"2.88

6.3+0.125=50.4

0.84X1.65=1.386

9.【解答】解：33.64-56=0.6

8.964-0.28=32

7.124-0.22"3.36

4.13H-14^0.30

10.【解答】解：

(1)12.44-4=3.1(2)45.94-0.6=76.5(3)514-0.3=170(4)52.84-12=4.4

(5)75.64-0.18=420(6)9.6+0.32=30

11.【解答】解：13+2.5=52

54.54-0.16=340,625

0.68+0.95=^0.72

2.05X0.16=0.328

78.6^11=7.1（商用循环小数表示）

6.21H-0.03=207

12【解答】解：1.254-0.25=5

78.64-11=7.1

5.634-7.8^0.72

28.28+0.4=70.7

0.3034-5=0.0606

13.【解答】解：1.574-3.9^0.40

0.58X0.24"0.14

70.7+33=2.1

14.【解答］解：★64.8+1.8=36

★8-6.693.3；

0.65X3.84心2.5

15.

【解答】解：9.44-11=0.8*1444-12=12

14.24-11=1.2

16.【解答】解：75.64-0.18=420

25.64-0.032=800

2.78X1,8=5.004

5.63+6.1^0.92

10+3.3心3.

17.【解答】解：30+7处4.29

60.94-3.2^19.0

25+9.9心3

18.【解答】解：(1)6.21-0.03=207(2)10.84-45=0.24(3)8.54+0.7=122

(4)72.94-0.9=81

19.【解答】解：①50.964-6.5=7.84②9.25+3.7=2.5③15+74=0.22④6.72+

4.2=1.6

20.【解答】解：(1)1.254-0.25=5(2)8.44-0.56=15(3)8.544-0.7=12.2(4)

78.64-11=7.1

21.【解答】解：4.5X0.18=0.81

2.3464-2.3=1.02

70.3X3,6=253.08

5.064-2.2=2.3

22.【解答】解：2.6X0.25=0.65

29.94-0.46=65

*4,654-1.3"3.58

23.【解答】解：①24.6+0.16=153.75②13.9+6-2.32③0.325+1.5"0.22

@6.24+0.8=7.8@18.3+4=4.575@19.24-6=3.2

24.【解答】解：7.054-0.94=7.5

1.71