5 - 4 = 1, 7 - 3 = 4, 9 - 9 = 0, 6 - 3 = 3, 14 - 9 = 5, 20 - 6 = 14, 14 - 11 = 3, 3 - 1 = 2, 7 - 6 = 1, 10 - 8 = 2,

Subtraction in Grade 1 Mathematics

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