.. 2 + 3 + 4 − 3

3

...

2 + 3 + 4 − 3 ? 10 −

15

1 + 2 + 6 − 3 ?< ? 16 11> ● > ○ = 9

…..

○ = 9 ● - ○ = ? 17

9, 0, 8, 1, 7, 2, 6, ☺ ,5, 4, 4, 5, 3, 6, 2, 7,1

,5, 4, 4, 5, 3, 6, 2, 7,1

☺=? 18 4 +2-1 = 51 = 5 ? □ + □ = ? (^★) 19

★★

20 ∆ =? ∆ =6