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Arithmetic Ability: Level One: Mental Addition of two-digit numbers.

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19 + 29 =

49 + 94 =

25 + 70 =

67 + 35 =

98 + 28 =

51 + 17 =

61 + 27 =

81 + 14 =

65 + 12 =

65 + 54 =

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metodorf.com



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