600 add 900

9 times 8

700 take away 272

97 add 96

50 times 11

90 take away 49

can you answer these questions !!!!!!!!!!!!!!

600 add 900

9 times 8

700 take away 272

97 add 96

50 times 11

90 take away 49

can you answer these questions !!!!!!!!!!!!!!