Thinking of solving problems: Four arithmetic rules (calculation in sequence, first multiplication and division, then addition and subtraction, first parenthesis, first power), that is, disjoint operation (recursive equation calculation), should be carried out on the premise of this principle.

Problem solving process:

26×28+382

=728+382

= 1 1 10

Extended data: align two addend numbers, and then add the numbers in the same counting unit separately. If the addition result exceeds 10, it will be advanced to 1, and the higher-order addition needs to be cumulatively advanced to the result of 1.

Problem solving process:

Step 1: 8+2=0 to the high position, 1.

Step 2: 2+8+ 1= 1 to the high position, 1.

Step 3: 7+3+ 1= 1 to the high position.

According to the above calculation steps, the combined calculation result is 1 1 10.

If in doubt, please ask questions. If satisfied, please adopt them.