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math grade 1

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Vietnamese 10 Public

math easy

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#TOAN LOP 1 #toanso1thegioi

20+ 20 = ................

40

25

7 + 9

16

25

100 + 300

400

25

50 + 20

70

25

6 + 6

12

25

8 + 9

17

25

30 - 20

10

25

you lucky

lucky

25

4 + 0

4

25

20 - 1

19

25