Room 5

Today 12.9.2012
 Class Challenge. . .

How many ways can we make 12?
Room 5 came out with some extraordinary ways to make the number 12!

Childrens initials are next to their suggestion. . .
10+ 2  DS
  9+3   JC
  3+9   LZ
(10+10)-10+2  GG
    1+11  HL
 (5x2)+2  AS
(2x2)+8  QJ
(5+5)+2  HL
   5+7    OH
(20-20)+12  DH
13-1  RL
  0+12  MR
15-3   AS
14-2  MN
30-18  AS
31-19  DS
-2+14  Yes that is negative 2 plus 14 . . DH
-4+16  AS

What clever, creative mathematicians!