1000 + 10 + 30 + 30 + 20 = 1090
1000 + 10 + 30+30 + 20 = 1090
k nha
Ta có:
1000 + 10 + 30 + 30 + 20
= 1010 + 30 + 30 + 20
= 1040 + 30 + 20
= 1070 + 20
= 1090
nha bn
1000 + 10 + 30 + 30 + 20
= 1010 + 60 + 20
= 1070 + 20
= 1090
1 con đi xin ti-ck nè
\(1000+10+30+30+20=1000+90\)\(=1090\)
1000 + 10 + 30 + 30 + 20
= 1010 + 60 + 20
= 1070 + 20
= 1090
1000 + 10 + 30 + 30 + 20
= 1100 + 60 + 20
= 1160 + 20
= 1180
1000 + 10 + 30 + 30 + 20
= 1000 + 90
= 1090
1000 + 10 + 30 + 30 + 20
= 1000 + (10+20) +30+30
= 1000 + 30 + 30 + 30
= 1000 + 30x3
= 1000 + 90
= 1090