67+12-14=64
91-11-14=66
89-11-11=67
99-11-80=88
100-99-1=0
99-81-17
77-60-13=4
88-12-15=61
111-111=0
999-888=111
777-444=333
555-111=444
888-111=777
999-666=333
777-000=777
111-000=111
ê cả tay
67+12-14= 65
91-11-14= 66
89-11-11=67
99-11-80= 8
100-99-1= 0
99-81-11= 7
77-60-13= 4
88-12-15=61
111-111= 0 999-888= 111 777-444= 333 555-111= 444
888-111= 777 999-666= 333 777-000= 777 111-000= 111
lần sau ra vưa vưa a bạn
Bài 1;Tính
67+12-14=65 91-11-14=66 89-11-11=67 99-11-80=8 100-99-1=0 99-81-11=7 77-60-13=4 88-12-15=61
111-111=0 999-888=111 777-444=333 555-111=444 888-111=777 999-666=333 777-000=777 111-000=111