Analysis: According to the title, the sum of subtraction and difference is 1258, 1258. If you subtract 126 from the difference, you can get twice the difference of 1 132. The difference is 566 and the subtraction is 692.

Difference = (1258-126) ÷ 2 = 566.

Subtraction =566+ 126=692

Subtraction formula

1, minuend-subtrahend = difference

2. Difference+Minus = Minus

3, the minuend-difference = reduction

Subtraction correlation characteristic

1, inverse exchange rate: subtraction is inverse exchange. If A and B are any two numbers, then

(A-B) =-(B-A)

2. Anti-association rule: subtraction is anti-association. When trying to redefine subtraction, then

a-b-c=a-(b+c)