84 - 26 =, 86 - 46 =, 63 - 47 =, 78 - 29 =, 96 - 47=, 64 -15 =, 40 - 40 =, 57 - 38 =, 18 - 9 =, 66 - 29 =.

2 Digit Subtraction without regrouping

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