Shelly bough 3 kites for $6 each. she gave the clerk 20$.how much change should shelley get

3 kites for $6 each would be 3*6 = $18                                                                  so the kites costs $18, and Shelly gave $20 so,                                                    20-18 = $2, Shelly should get $2 in change                                                           $2