12 plus 9 is 21, adding up numbers is very fun 7 plus 8 equal 15, adding up numbers is very uplifting Adding up numbers! Adding up numbers! 9 plus 0 is equal to 9, even adding nothing is adding just fine 12 plus 10 is 22, carrying the 1 is easy to do 12 plus 9 is 21, adding up numbers is very fun 7 plus 8 equal 15, adding up numbers is very uplifting! Adding up numbers! Adding up numbers! 2 plus 5 is equal to 7, add 4 more and you get 11 5 and 3 are equal to 8, adding up numbers make you feel great 12 plus 9 is 21, adding up numbers is very fun 7 plus 8 equal 15, adding up numbers is very uplifing! Adding up numbers! Adding up numbers! Adding up numbers! Adding up numbers! KOMPRESSOR adding up numbers!