thua so thu nhat la 68 lon hon thua so thu hai 59 don vi tich 2 so

tich 2 so tang them 845 don vi neu tang thua so thu 2 len 5 don vi. Thua so thu 1  la

trong mot tich co 2 thua so ,neu thua so thu 2 tang them 9 don vi thi tich tang them 1386 don vi. vay thua so thu nhat la

tich 2 so tang len 845 don vi neu tang thua so thu 2 len 5 don vi  thua so thu nhat la 

bai 1 :tong cua ba so tu nhien la 17 .biet rang so thu hai lon hon so thu nhat la 5 don vi va nho hon so thu ba  5 don vi .tim ba so do

bai 2 :khoi 5 dong dien the duc.neu cac em xep thanh 12 hang thi thua 5 hoc sinh.neu xep hang15 thi cung thua 5 ban nhung so hang it di 4 hang.hoi cobao nhieu hoc sinh dong dien ?

Tong hai so tu nhien lon hon so thu 1 la 15 don vi , hieu hai so lon hon so thu 2 la 15 don vi . hoi tich gap ? Lan thuong

tich 2 so tang them 845don vi thua so thu 2 tang 5 don vi vay thua so thu nhat la

trong mot tich co 2 thua so neu thua so thu nhat tang len 9 don vi thi tich tang them 1386. vay thua so thu nhat la

tich 2 so giam di 1176 thua so thu nhat giam 12 don vi thua so thu hai la