138+241+362+257+159
=(138+362)+(159+241)+257
=500+400+257
=900+257
=900+100+157
=1000+157
=1157
tk và kb nha!
A) 138+241+362+257+159
=(138+362)+(241+159)+257
= 500 + 400 +257
=1157
138+241+362+257+159
=(138+362)+(241+159)+257
=500+400+257
=900+257
=1157
chúc bạn học tốt
138+241+362+257+159
= ( 138+362)+(241+159)+257
= 500+400+257
= 900+257
= 1157
138+241+362+257+159=(138+362)+(241+159)+257=500+400+257=1157
