50+208<489-y<60+200
Đặt tính rồi tính:
169 + 729 137 +208
489 – 176 905 - 89
123-123+123-123+123-123+123=
123+123-123*123/123=
123+123+123+123+123=???
ai nhanh mk tick!
123 + 123 = ?
234 + 123 ........ 234 + 123
123+123+123=?
123:123+123=?
123-123+123=