so co 5 chu so ma hang don vi la 9 va nho hon so 10019 la so

so co 5 chu so ma chu so hang don vi la 9 be hon 10019

so co 5 chu so ma chu so hang don vi la 9 va nho hon so10019 la so nao?

tich cua 2 so A va B la mot so co hai chu so chia het cho 2 va 3 va chia 5 du 1,chu so hang chuc nho hon chu so hang don vi .khi cong hai don vi vao A va 4 don vi vao B thi ta co tich moi la 98. hay tim A va B.

tim mot so co ba chu so nho hon 115 co hieu giua chu so hang don vi va chu so hang tram la 7 . 

BAI5 VIET SO LON NHAT CO BON CHU SO MA TONG CAC CHU SO BANG 9, HIEU CHU SO HANG DON VI VA HANG NGHIN LA 5

BAI 5 VIET CAC SO CO 4 CHU SO, BIET MO SO DUNG SAU HON CHU SO DUNG TRUOC 2 DON VI(VI DU :1357)VA SAP SAP CHUNG THEO THU TU TANG DAN.

cho e la tap hop cac so tu nhien co hai chu so ma chu so hang chuc nho hon chu so hang don vi la 4

so phan tu cua e la

tim tat cac so tu nhien co ba chu so thoan man cac tinh chat sau : co tong cac chu so bang 9 chu so hang chuc lom hon chu so hang don vi la 2 don vi va neu ta doi chu so hang tram cho hang don vi thi duoc so moi lon hon so ban dau la 198 don vi

Viet tap hop cac so tu nhien co hai chu so,trong do:

a) Chu so hang chuc nho hon chu so hang don vi la 5

b) Chu so hang chuc gap 4 lan chu so hang don vi

c) Chu so hang chuc nho hon chu so hang don vi, tong hai chu so bang 14