NOTE: You must start the timer in order to check your answers

  

25 - 10 = 
17 + 4 =
21 + 8 =
15 - 4 = 
19 - 7 =
24 - 5 =
18 - 9 =
7 + 22 =
17 - 4 =
19 + 8 =

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