100-99+88-97+…… +24-23+22-21
The third number should be 98, the answer is 40, I don't know
Calculation: 21 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29
21+22+23+24+25+26+27+28+29,=(21+29)×9÷2,=25×9,=225.
Is the daily wage divided by 21 days or 18 days in October 2011
In October 2011, the daily wage was divided by 21 days
Because it's a legal holiday