Các câu hỏi tương tự
Điền dấu >,<,=:
A)7/12 .......7/13
B) 10/18......11/18
C) 5/8.......10/16
Điền dấu ><=:
a)10/18...11/18
b)7/12...7/13
c)5/8...10/16
Giúp mị mị tick
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=?
A) 8\5 - 18\15 B)78\42 - 4\7 C) 10\12 - 12 \36 D) 70\80 - 2\16 - 3\34
Rút gọn rồi tính
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+...100=
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+.....+99999999999956214 (tính tỏng)
1+2-3-4+5+6-7-8+9+10-11-12+13+14-15-16+17+18-19-20...+301+302
Tính nhanh:
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19
tính:
9/18+1/2
3/2-5/8
4/7x5/8
11/10+3/5:2/3