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9 CỘNG VỚI MỘT SỐ
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9 + 10 =?
19
Oops!
Okay!
9 + 6 =?
15
Oops!
Okay!
9 + 4 =?
13
Oops!
Okay!
9 + 3 =?
12
Oops!
Okay!
9 + 2 =?
11
Oops!
Okay!
9 + 5 =?
14
Oops!
Okay!
9 + 8 =?
17
Oops!
Okay!
9 + 9 =?
18
Oops!
Okay!
9 + 7 =?
16
Oops!
Okay!
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