=1/10+1/10+...+1/10=10/10=1
=1/10+1/10+...+1/10=10/10=1
Giá trị biểu thức 1/10 + 2/20 + 3/30 + 4/40 + 5/50 + 6/60 + 7/70 + 8/80 + 9/90 + 10/100
1+2+3+4+5+6+7+8+9+0+1-2-3-4-4-5-6-7-8-9-0+10+20+30+40+50+60+70+80+90=
Tính nhanh:
1/10+2/20+3/30+4/40+5/50+6/60+7/70+8/80+9/90=?
Tính giá trị biểu thức
\(\frac{1}{10}+\frac{2}{20}+\frac{9}{30}+\frac{16}{40}+\frac{25}{50}+\frac{36}{60}+\frac{49}{70}+\frac{69}{80}+\frac{81}{90}\)
Tính Nhanh: (1/10) + (4/20) + (9/30) + (16/40) + (25/50) + (36/60) + (49/70) + (6+80) + (81/90) + (100/100) = ?
A.66/35 B.55/1000
C.55/100 D.1234/5678
GIẢI ĐẦY ĐỦ NHANH VÀ ĐÚNG!
10+20+30+40+50+60+70+80+90+100=???????????????????????????????????????????
10+20+30+40+50+60+70+80+90+100=
10+20+30+40+50+60+70+80+90+100=?
10+20+30+40+50+60+70+80+90+100=???????????????????