cac ban oi giup minh bai nay voi
0,1 ; 0,01 ; 0,001 ; 0,001 tim quy luat roi viet them 3 so hang , tim so hang thu 100 cua day
Bai 1: Cho day so : 10; 13; 16; 19...
a) so 2002 la so hang thu bao nhieu cua day
b) Tim so hang Thu 107 cua day
Bai 2: tinh tong cua day so sau :
2; 4; 6; 8... 78; 80
Bai 3 : Cho day so
3; 6; 12; 24; 48...
Cac so 666; 2004 co thuoc day khong
Bai 4 : cho day 3; 18; 48; 93; 153...
a ) Tim so hang Thu 100 cua day
b ) so 11703 la so hang Thu bao nhieu cua day
Ai nhanh minh tick!
Giai ho bai nay voi
cho day so: 1,4,10,20,35,...
Tim so hang thu 18,80 (tim ra quy luat)
Ai biet lam bai nay thi giup minh nhe
Trung binh cong cua ba so la 193.806 .neu dich dau phay cua so thu nhat sang ben trai 1 hang ta duoc so thu hai . dich dau phay cua so thu nhat sang ben phai 1 hang thi duoc so thu 3 . hoi so thu 3 hon so thu 2 bao nhieu
cho day so 2,3,5,8,12,17,23,...a)tim so hang thu 50 cua dayb)so 242 co thuoc day hay khong neu co thi la so hang thu bao nhieu cua day
co ai giup tui khong tui can gap lam
BAI 1 : Cho day so : 5,21,53,101,165....
A.So 23765 la so hang thu may cua day?
B.So hang thu 87 la day so nao
BAI 2 : Hay chia 1022 qua cam thanh cac phan sao cho phan thu hai gap doi phan thu nhat , phan thu ba gap doi phan thu hai ... va theo cach chia nay phan thu nam co 32 qua . Hoi chia nhu the thi duoc may phan ?
BAI 3 : Trong mot tran thi dau dien kinh , cac van dong vien mang so 1,2,3 va 4 gianh duoc bon giai dau tien , nhung khong van dong vien nao gianh duoc giai trung voi so ao cua minh ca . Biet rang van dong vien dat giai 4 thi mang so ao trung voi giai cua van dong vien mang ao so 2 ; van dong vien thu 3 thi gianh duoc giai nhat , van dong vie so 2 khong gianh duoc giai ba . Hoi moi van dong vien gianh duoc giai gi ?
BAI 4 : Cho tam giac ABC ,E la mot diem tren canh BC sao cho BC=3EC . Noi AE lay mot diem M sao cho AE=4AM . Duong thang qua B va M cat canh AC tai D .
A . Tinh ti so AC : AD ?
B . so sanh dien tich AMD voi dien tich MBE
1 day pho co 50 nha .so nha cua 50 ngoi nha do dc danh =cac so chan lien tiep ,tong cua 50 so nha =4950. tim so nha dau tien
giai ca bai nha
giup minh nhanh nhanh
tim so hang thu 50 cua day so 5;26;61;110
cho day so 1,4,7,1o,13,...
a. tim so hang thu 50 cua day.
b. tinh tong cua 50 so dau tien
