HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
werewsdg
12 x 12 = 144
k nha
= 10
5 x 2 = 10
507 cm2
2+4
=4+2
=6
= 6
đung 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x + 300 = 600 + 100
x + 300 = 700
x = 700 - 300
x = 400 ai k mk,mk k lại
chữ omo bạn nhé