I.Dai so:

Cau1. Gia tri tuyet doi cua so huu ti x duoc xac dinh nhu the nao?

Cau2. Viet cac cong thuc:nhan, chia hai luy thua cung co so. luy thua cua: luy thua, mot tich, mot thuong.

cau3.  Ti le thuc la gi? Tinh chat co ban cua ti le thuc. Viet cong thuc tinh chat cua day ti so bang nhau.

cau4. Dinh nghia can bac hai cua mot so am? cho vi du?

Cau 5 Khi nao thi hai dai luong y va x ti le thuan voi nhau? Tinh chat cua hai dai luong ti le thuan ?

 Cau 6:Khi nao thi hai dai luong y va x ti le nghich voi nhau? Tinh chat cua hai dai luong ti le nghich?

Cau 7:Do thi cua ham so y= ax ( a khac 0) co dang nhu the nao?

Cau 1: viet 1000 so tu nhien dau tien , hoi chu so 3 co mat bao nhieu lan.

Cau 2:de danh so trang 1 quyen sach nguoi ta  dung  1995 chu so.hoi cuon sach day bao nhieu trang.

Cau 3:Giai thich tai sao :

a/so co 4 chu so xyxy khi chia cho so 2 chu so xy lai co thuong la 101.

b/so co 6 chu so xyvxyv khi chia so co 3 chu so xyv lai co thuong la 1001

Cau 4: Cho day so 4,7,10,13,16,.....

a/tim so thu 100 cua day,so thu n cua day .

b/So 45+23 co mat trong day do ko

Cau 5:tim so tu nhien co 5 chu so,biet rang neu them 2 chu chu so vo dang su so do thi duoc so lon gap 3 lan so do co duoc bang cach viet them chu so 2 vao da truoc so do

CAU 1; CHO 2 SO DEU CO 2 CHU SO,TONG CUA 2 CHU SO BANG 46.NEU GHEP SO BE VAO BEN PHAI,HOAC GHEP SO BE VAO BEN TRAI SO LON THI DUOC 2 SO DEU CO 4 CHU SO;HIEU CUA HAI SO NAY BANG 2178.TIM 2 SO DA CHO?

CAU 2;TIM 4 SO CO TRUNG BINH CONG LON HON SO THU NHAT LA 98 BE HON SO THU HAI LA 7,BANG NUA SO THU BA VA GAP DOI SO THU TU.

CAU 3; HINH TAM GIAC ABC CO CHIEU CAO AH.TREN AH LAY M SAO CHO MH=1/3 AH.NOI M VOI B,BH=6,4 CM;HC=7,2 CM.TINH DIEN TICH HINH TAM GIAC ABC,BIET DIEN TICH HINH TAM GIA BMH LA 11,2 CM VUONG.

CAU 4;CHO DAY SO ....64;81;100;121;144.TIM SO HANG DAU TIEN CUA DAY SO BIET DAY SO CO MUOI SO HANG.

CAU 5;NGUOI TA MUA MOT BAO MI CHINH CAN NANG 50 KG VAO CAC TUI NHO .MOI TUI DUONG 450 GAM THI THIEU 11 TUI VA THUA 50 GAM.HOI NEU CHIA VAO MOI TUI 800GAM THI CO THUA BAO NHIEU TUI.

CAU 6;1 NGUOI BAN HOA QUA,NGAY DAU BAN DUOC 20 KG.BIET SO HOA QUA NGAY DAU BAN DUOC BANG 80% CUA NGAY THU HAI ,SO HOA QUA CUA NGAY THU HAI BANG 125% CUA NGAY THU BA VA BANG 80% CUA NGAY THU 4.HOI TRONG 4 NGAY BAN DUOC BAO NHIEU KG?