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

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63 + 13 =

96 + 34 =

63 + 77 =

44 + 46 =

73 + 47 =

68 + 77 =

57 + 43 =

98 + 61 =

87 + 72 =

93 + 87 =

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metodorf.com



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