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Interactive Portal-Book of Self-Development Methods

Arithmetic ability: Level One: Mental subtraction of two-digit numbers.

Return to exercise selection

37 - 29 =

59 - 41 =

89 - 57 =

93 - 19 =

73 - 62 =

96 - 39 =

66 - 57 =

76 - 33 =

60 - 28 =

26 - 18 =

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metodorf.com



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