1.8% is written (2 1.8%) and 106% is read (106%).

2. In a math exam, the pass rate of Class 6 (1) is 98%. The number of people who passed the exam accounted for 100 (98) of the class, and the number of people who failed accounted for (2 )% of the class.

3. The green area of warm home this year has increased by 10% compared with last year. This year's green area is (1 10 )% of last year's. This year's green area ratio is (1 1): (10).

Second,

135% >； 1.2 >96%

Xiaoming skips rope the most.