19 - 19 + 25 + 35 - 25 - 10 + 98 = 123
tick mình nha
bạn nguyen vu hoang anh
19-19+25+35-25-10+98
=0+25+10-10+98
=25+0+98
=123 nhớ tik nha
255 + 60 + 55 + 19 + 12 + 38 =......................
25 + 31 + 30 + 19 + 5 + 10 =............................
Ai nhanh mk tick
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50.
Viết tiếp vào dãy số sau cho đủ 10 số hạng:
13; 19; 25; 31; 37; 43; 49; 55 ; ............ ; .................
19+25+69 =....?
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27=.................................
21 - 19 + 25 x 30 : 2 = ?
(6*5-30)*(19+21+23+25+27+29+31)=?
Tính Nhanh
a 10+12+14+16+18+20
b 1+3+5+7+9+11+13+15+17+19
c 75+110+25+90+200
