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二年級加減乘除

Chinese 105 Public

温習

Study Slideshow

#Numbers #maths #mental math

47 ÷ 5

9...2

15

10 ÷ 4

2...2

15

24 ÷ 8

3

10

30 ÷ 3

10

10

33 ÷ 9

3...6

15

56 ÷ 7

8

10

147 + 234

381

15

158 + 97 + 46

301

25

42 ÷5

8...2

15

50 ÷ 9

5...5

15

38 ÷ 8

4...6

15

57 ÷ 7

8...1

15

70 ÷ 10

70

10

42 ÷ 6

7

10

36 ÷ 4

9

10

4 x 8

32

10

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