ý 1 ) 632 + 658 + 965 : 5 + 65 x 21
= 1290 + 193 + 1365
= 1483 + 1365
= 2848
ý 2 ) 34 : 2 + 786 + 543 x 5 + 56
= 17 + 786 + 2715 + 56
= 803 + 2771
= 3574
ý 3 )
65789 + 76365465 < 6857657 + 54534245356
~~ tk mk nha, ddg âm `~~
Xiumin
~~ Mơn !~ ^^
\(632+658+965:5+65x21=632+658+193+1365=2848.\)
\(34:2+786+543x5+56=17+786+2715+56=3574\)
dấu cần điền là <