2、(2+2+2)÷2-2= 1

3、2+2+2-2-2=2

4、2+2×2÷2÷2=3

5、(2+2+2+2)÷2=4

6、2+(2+2+2)÷2=5

7、2+2+2+2-2=6

8、2×2×2-2÷2=7

9、2×2×2+2-2=8

10、2×2×2+2÷2=9

Extended data

Fill in the appropriate operation symbols between five eights, so that the calculation results are equal to 0, 1, 2, 3, 4, 5, 6, 7 and 8 respectively.

(8-8)/(8+8+8)=0

(8+8)/8-8/8= 1

(8+8)/8+8-8=2

(8+8)/8+8/8=3

(8+8+8+8)/8=4

8-(8+8+8)/8=5

8*8-(8+8)/8=6

8-8/8-8+8=7

(8+8+8)-(8+8)=8