To understand How to do addition on number line, study the following examples:
Example 1  Solve and show (5 X 2) on number line
Since we have to multiply "5" with "2", so we start with "0' and jump five units to the right & reach at number "5". Now again, from number "5" jump five units to the right and we reach at number "10". And we know (5 X 2) = 10.
Example 2  Solve and show (2 X 3) on number line
Since we have to multiply "2" with "3", so we start with "0' and jump two units to the right & reach at number "2". Again jump two units from number "2" and reach at 4. Once again jump two units from number "4" and reach at number "6". And we know (2 X 3) = 6.
Example 3  Solve and show (3 X 3) on number line
Since we have to multiply "3" with "3", so we start with "0' and jump (three times) three units to the right and we reach at number "9". And we know (3 X 3) = 3.
