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數學速算

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

31-10

(a)  

2.

15-8

(a)  

3.

70-30

(a)  

4.

47-7 + 10

(a)  

5.

3個十和9個一合起來是( )

(a)  

6.

( )-20=20

(a)  

7.

57-( )=6

(a)  

8.

19 + 6

(a)  

9.

被減數38,減數5,差是( )

(a)  

10.

36+(17-7)

(a)