Thinking of solving problems: In practical problems, division is generally used when the keyword is average, multiplication is generally used when multiple is used, addition and subtraction are generally used when the number is more or less, and formulas are applied according to keywords.

Problem solving process:

9 1-(5-3)× 10+(6-0)

=9 1-2× 10+6

=9 1-20+6

=7 1+6

=77

The correct result is 77.

Extended data = > Vertical calculation-calculation process: align the units of the minuend and the minuend, and then subtract the numbers in the corresponding counting units respectively. If the subtraction is not enough, you need to borrow 1 from the high position, and then calculate the results in turn. If the subtraction is less than the minuend, the two numbers are exchanged and subtracted, and a negative sign is added to the final result; Fractional subtraction can refer to the integer subtraction step;

Problem solving process:

Step 1: 1-0= 1

Step 2: 9-2=7

According to the above calculation steps, the calculation result is 7 1.

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