Common multiple of 2. 2 3 4 =3*4= 12
So the three of them can meet again in 12 days, that is, 13 years.
3. The middle part =24÷3=8 (m)
The last paragraph =8-2=6 (m)
4. Students participating in this math contest =140 ÷ (116+1/8+25/100) = 320 (people).
Huanggang famous volume Qingdao edition is good, Huanggang Qingdao edition is formulated according to local educati