2. 1.4× 3 = 2 1 (species)

2.3+2+ 1 = 6 (species)

3.3 species

4.4+3+2+ 1 = 10 (species)

5.4+3+2+ 1 = 10 (species)

6.3× 2 = 6 (species)

7.4× 2 = 8 (sheets)

8.3× 3 = 9 (species)

9. 1 yuan +5 jiao 1 yuan +2 jiao 1 yuan+1 jiao 5 yuan +2 jiao 5 jiao+1 jiao 2 jiao.

10.6 species

11.4+3+2+1=10 (times)