Tro choi dua xe powerpoint

GO GO GO GO 10 25 + 13 + 51 – 36=? 53 + – +2 + 3=? 88 13 + 24 + – 22=? 15 + +4 – +3 +2=? 44+23 +11- 25-51+ 13=? 15 2+2+4-5+4=? 12+2+33-21=? 26 32+41+14-25=? 62 2+4+3-7+4+2-5=?