【題目】看誰能算對。
(1)12-8=________ 12-2=________ 12-6=________
14-9=________ 16-8=________
(2)11-3=________ 9+7=________ 13-7=________
15-8=________ 17-9=________
(3)16-9=________ 10-7=________ 7+11=________
13-9=________ 17-7=________
(4)14-8=________ 12-7=________ 16-6=________
18-9=________ 10+8=________