How would the arithmetic? - Subtraction

Number Theory Level pending

Look:

3 ⊟ 2 = 1 3\boxminus2=1

36 ⊟ 2 = 1 36\boxminus2=1

35 ⊟ 24 = 1 35\boxminus24=1

62 ⊟ 15 = 5 62\boxminus15=5

125 ⊟ 115 = 1 125\boxminus115=1

253 ⊟ 148 = 11 253\boxminus148=11

1256 ⊟ 256 = 100 1256\boxminus256=100

Find: 2569 ⊟ 1256 2569\boxminus1256


The answer is 131.

Victor Paes Plinio by Victor Paes Plinio , 21, Brazil

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