Ôn tập toán 6
Các câu hỏi tương tự
tim so tu nhien co 2 chu so biet rang so do hon 7 lan tong cac chu so cua no la 6 don vi
tim so tu nhien co 3 chu so biet rang neu tang moi chu so cua no len n don vi thi ta duoc mot so co 3 chu so gap n lan so da cho
tim so tu nhien co 4 chu so biet rang so nay chia 3 du 2, cac chu so hang ngan,hang chuc, hang tram, hang don vi lan luot la la cac so tu nhien lien tiep tang dan va trong 4 chu so do khong co chu so nao bang 7
cho tap hop A cac so tu nhien co 2 chu so , biet chu so hang don vi gap doi chu so hang chuc
a, hay liet ke cac phan tu cua tap hop A
b, viet tat ca cac tap hop con cua A co 2 phan tu
c, viet tat ca cac tap hop con cua A cp 3 phan tu
Ai biet thi giup minh voi nha
Cau hoi la :tim so tu nhien co 5 chu so biet rang neu viet them chu so 2 vao dang sau so do thi duoc so lon gap 3 lan so co duoc bang cach viet them chu so 2 vao dang truoc so do
[ ai lam dung minh se tich cho]
hay viet
tat cac cac so co 2 chu so biet rang chu so hang don vi gap doi chu so hang chuc
ong cac chu so cua mot so co 2 chu so bang 10 . neu thay doi thu tu cac chu so thi so do giam 36 don vi . tim so do .Cac ban oi giai theo cach lop 5 nh a co giao minh bao vay
tim so co 2 chu so biet tong 2 chu so cua no bang 13 .neu doi vi tri 2 chu so cua so phai tim tthi so do tang them 9 don vi
giai theo cach lop 5 nha
tìm 1 số có 3 chu sobit rang so do gap 5 lan tich cac chu so cua nó