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翰林三下數學第9單元小數

Total questions: 20

Worksheet time: 22mins

Name
Class
Date
1.

0.9是( )個0.1

a)

9

b)

19

c)

90

d)

900

2.

4.5是( )個0.1

a)

4

b)

5

c)

9

d)

45

3.

1個10、2個1和7個0.1合起來是( )

a)

127

b)

72.1

c)

12.7

d)

1.27

4.

30個0.1合起來是( )

a)

0.3

b)

3

c)

30

d)

300

5.

35.4的十分位數字是( )

a)

3

b)

5

c)

4

d)

10

6.

5.9再多0.1是( )

a)

5.8

b)

5.91

c)

6

d)

6.9

7.

3公分2毫米=( )公分

a)

3

b)

3.2

c)

32

d)

320

8.

哪個數比1.5大,而且比4.8小?

a)

0.9

b)

1.9

c)

5.1

d)

7.2

9.

10.2 5.6 7.8 2.9

以上數字從大排到小

a)

10.2 > 5.6 > 7.8 > 2.9

b)

10.2 > 2.9 > 7.8 > 5.6

c)

10.2 < 7.8 < 5.6 < 2.9

d)

10.2 > 7.8 > 5.6 > 2.9

10.

0.5 + 0.8 = ( )

a)

0.3

b)

1.3

c)

13

d)

40

11.

6.4 + 7.5 = ( )

a)

1.1

b)

13.9

c)

81.4

d)

139

12.

2.9 + 1.4 = ( )

a)

1.5

b)

3.3

c)

4.3

d)

33

13.

8.5 + 8.5 = ( )

a)

0

b)

16

c)

16.5

d)

17

14.

18 + 32.4 = ( )

a)

34.2

b)

40.4

c)

50.4

d)

332

15.

4.6 - 3.3 = ( )

a)

0.7

b)

1

c)

1.3

d)

7.9

16.

36.3 - 7.7 = ( )

a)

286

b)

44

c)

28.6

d)

29.6

17.

10 - 4.8 = ( )

a)

6.8

b)

6.2

c)

6

d)

5.2

18.

家裡有1.5公斤的紅豆,媽媽煮紅豆湯用掉0.8公斤,還剩下多少公斤的紅豆?

a)

23

b)

7

c)

2.3

d)

0.7

19.

六十嵐今天賣出19.4公升的紅茶,今天比昨天多賣出2.7公升,昨天賣出多少公升?

a)

37.9

b)

22.1

c)

16.7

d)

12

20.

在數線上,小鳥從5.3的位置向右飛了2.8,小鳥停在哪個數字上?

a)

8.1

b)

7.1

c)

3.5

d)

2.5