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小數加減混合計算(速算)

Total questions: 15

Worksheet time: 5mins

Name
Class
Date
1.

1.2+4.3=

a)

4.9

b)

10

c)

5.5

d)

1

2.

9.8-1.7=

a)

11.5

b)

8.1

c)

9.1

d)

9

3.

9.8-1.7=

a)

11.5

b)

8.1

c)

9.1

d)

9

4.

8.1+1.4=

a)

9.5

b)

8.4

c)

9.1

d)

10

5.

10.40+2.1+3.4=

a)

15.90

b)

15

c)

7.5

d)

15.9

6.

17.9-4.10=

a)

6.43

b)

13.80

c)

13.8

d)

22

7.

91.70-10.4=

a)

23.9

b)

81.3

c)

8.1.3

d)

81.30

8.

98.7-10.40=

a)

88.3

b)

98.3

c)

10.4

d)

7.65

9.

2.3+1.5-3.4=

a)

3.8

b)

0.4

c)

.4

d)

23

10.

1.2+4.1-2.3=

a)

9.0

b)

3.0

c)

2.8

d)

3

11.

6約是?(只是填數字)

(a)  

12.

51約是?(只是填數字)

(a)  

13.

496約是?(只是填數字)

(a)  

14.

26約是?(只是填數字)

(a)  

15.

送分題和挑戰題

1+2+3⋯+100=?

(a)