1.Mitra & Parama Mitra

2.Sunyanth Sankhya

1.Sunyanth Sankhya + Sunyanth Sankhya

2.Sunyanth Sankhya - Sunyanth Sankhya

3.Sunyanth Sankhya + Single Digit

4.Sunyanth Sankhya - Single Digit

3.Ekadhikena Purvena

Double Digit + Single Digit

4.Ekanuenena Purvena

Double Digit - Single Digit

5.Sunyanth Sankhya + Double Digit 

6.Urdhva Tiryagbhyam 

2D X 2D, No Carry 

7.Urdhva Tiryagbhyam 

2D X 2D, Digits: 0 to 5