50+50+50+50+50+50+50+50 =?????(8 số 50)
50+50+50+50+50+50=
50+50+50+50+50=....
50+50+50+50
50+50+50+50
50-50=???
50+50=???
50 + 50 = ?
50 . 50 = ?
50+50-30+50+90+60-50+20
50+50+50-50-50=??
ai tick mình , mình tick lại
mình hứa 100% luôn
50+50+50+50+50+60+60+60+60+60 bằng bao nhiu
kiếm điểm hỏi đáp nè