Triangles

22,312-17,422

82,456-73,621

13,451+12,921

23,452+11,311

22 x 32

213 x 42.

 

Squares

8,341 – 3,612

14,561-12,700

3,782+1,249

4,950+2,134

24 x 26

32 x 43

 

Circles

77-44

33-15

23+56

105+25

4×6

7×3

 

I will post the answers to your challenge at 3pm.  I have also set up a sumdog challenge.  Good Luck!