Judgment of traditional knowledge contest

The answer process is as follows:

Assuming all the answers are correct, then the answers are all wrong:

( 10×2- 14)÷(2+ 1)

=6÷3

=2 (track)

He answered two questions wrong.

Extended data

Algorithms for elementary arithmetic of integers;

In the formula without brackets, if there is only addition, subtraction, multiplication and division, it should be calculated from left to right.

In the formula without brackets, if there are both multiplication and division and addition and subtraction, the multiplication and division are calculated first, and then the addition and subtraction are calculated.

For formulas with brackets, count the ones in brackets first, and then the ones in brackets.